Answer:
The species became less abundant
Explanation:
If the species decreases it doesn't necessarily means it has become extinct.
Answer:
This means that the number of individuals of this species has decreased over time.
Explanation:
When a rock is formed in one place, it goes through a process called weathering, which causes this rock to create layers over time. The deeper the layer, the older it is, on the other hand, the more superficial layers are younger. This is very important when cinetistas want to know how the population of a given species has increased or decreased over the years.
This occurs by visualizing the amount of fossils in each layer of the rock. If scientists can see that the number of fossils of a single species decreases significantly in the higher rock layers compared to the deeper layers, they can conclude that the number of members of that species has decreased over time.
In the anatomical position, the body is standing erect with the feet flat on the floor, face and eyes facing forward, and arms at the sides with the palms facing forward. Which of the following best describes the anatomical position? Select one:
A. Right and left are reversed.
B. Toes and palms are anterior.
C. Toes and palms are posterior.
D. The head is inferior to the abdomen.
E. The transverse plane divides the body into right and left portions.
Answer:
B. Toes and palms are anterior.
Explanation:
In an anatomical position, directional terms are used to describe the position of the body parts with respect to each other. Anterior, also referred to as ventral position, means the specific body part is at the front of the body or facing forward.
According to the given position of the standing body, palms are facing forward making them anterior in position. The body is standing on the floor with flat feet which means that the toes of the feet are also facing forward.
This makes both toes and palms of the given standing body to be anterior in their position.
In the anatomical position, the body is upright with eyes facing forward and arms at the sides, palms and feet facing forward. In this stance, it is accurate to say that the toes and palms are anterior (facing to the front of the body), not posterior (facing toward the back of the body).
Explanation:In the anatomical position, the body is positioned in the upright posture with the feet flat on the floor. The face and eyes facing forward and arms are positioned at the sides, with palms turned so they are facing forward as well. In this stance, it is most accurate to say that the toes and palms are anterior (B).
Anterior refers to the front of the body or positioned nearer to the head. Therefore, when standing in anatomical position, the palms and toes are indeed anterior, as they are oriented toward the front. The term posterior, on the other hand, refers to the back of the body or something further away from the head. So, in anatomical position, the palms and toes are not posterior.
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Write a paragraph of at least three sentences about stem cells. The paragraph should include what stem cells are, the controversy around them, and your opinion about using them for research.
Answer:
Stem cells are cells of a multi-cellular giving rise to an unending gift of more cells of the same type. The stem cell controversy is looking at how the stem cells develop, how they are used and how they destroy human embryos. I think its a good thing the do it because it may be a big thing in the near future that they can use it for some cure or something.
Explanation:
Stem cells are a type of cell that have the extraordinary ability to transform into any specialized cell in an organism. These cells are able to differentiate, through cell divisions even if stored for long periods of time. In summary, a stem cell is able to pass through several cell divisions creating a large number of cells, capable of forming tissues, restoring organs, among many other benefits.
The great controversy surrounding these cells is that they need to be extracted from embryos. As you know, the embryo is the initial stage of a living organism and for that reason, many people believe that it is unethical to remove cells from an embryo when it does not have the capacity to allow or deny it. Other people claim that the regenerative power of stem cells should not be manipulated by humans, as it takes away the sovereignty of God in relation to life and the human body. There are also people who believe that the regeneration capacity of these cells is somewhat controversial and that the negative points of using them have not been fully explained.
However, we must see scientific research that uses stem cells as a major scientific advance, which will help countless people around the planet, such as people with osteoporosis, bone problems, cancers, among others. Such research should be encouraged, so that the problems surrounding stem cells are resolved and this technology can be used.
Sylvia needs 110 mL of a 34% acid solution in order to complete an experiment in chemistry lab. She makes the 34% acid solution from a mixture of a 62% acid solution and a 21% acid solution. Find the volume of the 62 % acid solution that Sylvia uses to make the mixture.
Answer:
Volume of [tex]62[/tex] % acid solution is [tex]34.878 mL[/tex]
Explanation:
The total weight of [tex]34[/tex] % mixture containing [tex]62[/tex] % and [tex]21[/tex] % solutions [tex]= 110[/tex] mL
Let the weight of [tex]62[/tex] % solution is equal to [tex]X[/tex] mL
then the weight of [tex]21[/tex] % solution is equal to [tex]110-X[/tex] mL
Arranging the given conditions in the form of equation, we get -
[tex]0.62 X + 0.21 (110 -X) = 0.34 * 110[/tex]
[tex]0.62 X + 23.1 - 0.21 X = 37.4\\0.62 X - 0.21 X = 37.4 - 23.1\\X = \frac{14.3}{0.41} \\X = 34.878[/tex] mL
The volume of [tex]62[/tex] % acid solution is [tex]34.878 mL[/tex]
Five mass extinctions have occurred throughout Earth's history, the last hypothesized to have been caused by an asteroid impact at the end of the Cretaceous. Currently, scientists agree that we are in the middle of a sixth mass extinction. What is the cause of the current mass extinction?
Answer:
The cause of the current mass extinction is the anthropic activity. The consumption of fossil fuels, ocean acidification, pollution, deforestation and forced migration threaten life and have caused the disappearance of many species.
Final answer:
The sixth mass extinction differs from past events as it is caused by human actions, including habitat destruction, pollution, and overexploitation of species, marking a significant shift from natural catastrophic events to anthropogenic impacts.
Explanation:
The cause of the current, or sixth mass extinction, is significantly different from those of the past. While past extinctions were largely due to major geologic and climatic events, the sixth extinction is directly attributable to human actions. These actions include habitat destruction, overexploitation of species, pollution, and the introduction of invasive species, all of which have dramatically increased the rate of species extinction.
Unlike previous mass extinctions that were caused by events such as asteroid impacts or massive volcanic eruptions, the current crisis is the result of the activities of Homo sapiens, especially since the onset of the industrial revolution.
A 1cm diameter, 6 cm long core is removed from a carrot. The resulting hole is filled with corn syrup, and a glass tube is inserted into the hole to make a watertight seal. The carrot is suspended in a cup of pure water. Beginning with the carrot cells adjoining the hole, and going out to the carrot epidermal cells exposed to the water, describe what will happen to the carrot cells. Also, what will happen to the level of liquid in the glass tube and why?
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[tex]\boxed{Explained\:Answer}[/tex]______________________________
✿━━━━@♥ℳg━━━━✿
■Here,The corn syrup is hypertonic to the carrot, so will take water from the adjoining cells, causing those cells to shrink, become hypertonic to their neighboring cells and to take water from them.
■Conversely the water is hypotonic, and will enter the cells in the outer of the carrot.
■Because of this water will pass from the outside of the carrot to the inside, and cause liquid in the tube to rise
Answer:
Carrot cell will swell and liquid level in glass will reduce
Explanation:
Carrot cell will absorb water and swell in due course of time as there is difference in concentration of water outside and inside the cell.
Similarly, the corn syrup remains intact from the epidermal cell of the carrot due to the glass tube. Being hyper-tonic in nature and also due to presence of water tight glass lid, it is unable to extract water from the adjoining cell; corn syrup will take water from the tube thereby further reducing the level of water in the tube
Cells of a normally rod-shaped bacterium (e.g., Bacillus subtilis) that have completely lost the ability to produce the MreB protein would mostly likely be
Answer:
The bacterium will be a spherical shape
Explanation:
The responsible for the width of rod-shaped bacteria is the protein called MreB. This protein forms large microfilaments that are very similar to actin filaments found in eukaryotic cells. All the bacteria that are spherical by nature doesn’t have the protein MreB. So, if a rod-shape bacterium that doesn´t have a MreB protein or is altered this bacterium would be spherical-shape.
A population _____ follows a period of _____.
A. increase; overshoot
B. decline; overshoot
C. scarcity; dieback
I believe it to be B!
Answer:
Decline Overshoot
Explanation:
Odyseyware
How do changes in nutrient levels affect the structure of aquatic food webs?
ANSWER:
The effects of increasing or decreasing the nutrient levels in an aquatic food webs is described in the explanation.
Explanation:
If the nutrient levels in an aquatic food web increase moderately then it will result in increased production of the primary producers and the consumers.
But if the nutrient levels are increased excessively, like in eutrophication, then the increased level of nutrients will result in overproduction of the consumers like fishes, etc. Hence, there will be a scarcity of resources like oxygen in the water to support them and this will lead to a decline in biodiversity of the aquatic food web.
If the nutrient levels are decreased, then there will be competition for resources among the species which will ultimately lead to the decline of some species from the aquatic food web.
EARTH SCIENCE
1. Select the correct answers from the list.
Scientists wondered how volcanoes could be located so far from tectonic plate boundaries until one proposed the idea of BLANK, where the magma is much hotter than the surrounding magma. These are BLANK and do not move with tectonic plates. They are responsible for the creation of BLANK island chains.
2. What main process do all volcanoes have in common, regardless of the specific ways they form?
a rising magma
b plate subduction***
c hotspots
d plate divergence
3. Describe how plant fossils found at Svalbard in Norway gave evidence of drifting continents.
a They were found only in that one location.
b They were plants that became extinct millions of years earlier.
c They were found in glacial deposits.***
d They were warm climate plants that would not grow in a cold polar area.
4. Which features would you look for to classify a volcano? Select the three correct answers.
a height*
b steepness*
c color
d type of lava
e presence of foliage*
f age of rock
5. What will happen where two continental plates collide at a convergent boundary?
a One plate is subducted beneath the other.
b The direction shifts and it becomes a transform boundary.
c The plates push up, forming a mountain range.***
d A volcanic island arc is formed.
Volcanoes, drifting continents, and classification of volcanoes.
Explanation:1. The correct answers are:
Hotspots Stationary Island chains
2. The main process that all volcanoes have in common, regardless of how they form, is rising magma.
3. Plant fossils found in glacial deposits at Svalbard in Norway provided evidence of drifting continents.
4. The features used to classify a volcano are height, steepness, and presence of foliage.
5. When two continental plates collide at a convergent boundary, the plates push up, forming a mountain range.
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Volcanoes can be located far from tectonic plate boundaries due to hotspots, which are fixed points responsible for island chains. All volcanoes have rising magma as a common process. Plant fossils in glacial deposits at Svalbard provided evidence of drifting continents. The height, steepness, and presence of foliage classify a volcano, and when two continental plates collide, a mountain range is formed.
Explanation:1. Scientists wondered how volcanoes could be located so far from tectonic plate boundaries until one proposed the idea of hotspots, where the magma is much hotter than the surrounding magma. These are fixed points and do not move with tectonic plates. They are responsible for the creation of island chains.
2. The main process that all volcanoes have in common, regardless of the specific ways they form, is a rising magma. This rising magma creates the pressure and heat necessary for volcanic eruptions.
3. Plant fossils found at Svalbard in Norway gave evidence of drifting continents because they were found in glacial deposits. This indicates that the location of Svalbard was once in a warmer climate, which aligns with the theory of continental drift.
4. The features to look for in order to classify a volcano are height, steepness, and presence of foliage. These characteristics can help determine the type and activity level of a volcano.
5. When two continental plates collide at a convergent boundary, the plates push up, forming a mountain range. The collision of the plates forces the land upwards, resulting in the formation of towering mountains.
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Phospholipids tend to group together so that their polar parts face the surrounding aqueous environment, while their hydrophobic tails face each other. The resulting structures are called _______.
Multiple Choice
a. steroids
b. micelles
c. ketones
d. round cells
Answer: b. micelles
Explanation:
Phospholipids are lipids that contain a polar part, which is hydrophilic (i.e. likes water) and a non-polar part, which is hydrophobic (i.e. dislikes water).
When phospholipids are in an aqueous environment they form a structure called micelle, in which the polar heads face the water molecules and surround the non-polar tails which remain on the inside. This way, the polar heads protect the hydrophobic chains from exposure to the aqueous environment.
I've attached an image of a micelle for better understanding of its structure.
what is artifical selection
Answer:
Intentional reproduction between two individuals
Answer: What situation is an example of artifical selection?
A) Female bluegill fish prefer to lay their eggs in the nests of larger male fish.
B) Albino deer or rabbits have a low survival rate in nature, because it is easy for predators to spot them.
C) Penguins with higher body fat tend to survive nesting in the Antarctic winter, while leaner penguins often die.
D) More African elephants today naturally lack tusks compared to the elephant populations 100 years ago, because big game hunters sought elephants for ivory.
Explanation:
Here is the options, please help !!!
How do the basic principles of inheritance, identified by Mendel in plants, differ from those in humans?
a. They are simpler.
b. There are no Mendelian traits in humans.
c. Plants don’t have alleles.
d. The number of chromosomes is different; therefore, genetic principles vary.
e. There are no differences since the basic principles are the same.
Answer:
e. There are no differences since the basic principles are the same.
Explanation:
The basic principles of inheritance as proposed by Mendel while working on garden pea are applied to all living beings including humans. The human also has discrete units that regulate genetic traits. These units are called genes.
Genes are present on chromosomes which in turn carry them from parent to progeny. Gametes formed in humans also follow the law of segregation and bear only one allele of each gene.
Two pairs of genes are independently segregated from each other which in turn leads to the production of parental as well as recombination gametes. Therefore, the concepts of genes, purity of gametes, the independent assortment of two pairs of genes, dominance are applicable to humans also.
Normal microbiota
A) indefinitely colonize the body.
B) take up residence in sites such as the colon and mouth.
C) almost always cause disease in the host.
D) are normally found in blood.
E) both indefinitely colonize the body and take up residence in sites such as the colon and mouth.
Answer:
E) both indefinitely colonize the body and take up residence in sites such as the colon and mouth.
Normal microbiota both indefinitely colonize the body and take up residence in sites such as the colon and mouth.
What is microbiota ?The set of microorganisms that are found in different parts of the body called as microbiota or microbiome, it shows symbiotic relationship between host and bacteria.
Bacteria help in digestion of food, produce vitamins and other compounds which we get from other sources, protect our body from colonization of other microorganism, functioning of physiological system,
The normal microbiota can be up two types such as Autochthonous microbiota live in our body for a prolonged period, participate in physiological processes and have evolved together with the species.
Allochthonous microbiota appear in any random habitat and appear accidentally or temporarily, don’t participate in physiological processes.
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Active transport must function continuously because __________.a) plasma membranes wear outb) cells must be in constant motionc) facilitated transport opposes active transportd) diffusion is constantly moving the solutes in the other direction
Answer: Option D.
Explanation:
Active transport is defined as the transfer of molecules and other substances across a membrane from lower to higher concentration against the concentration gradient. Active transport utilizes Adenosine Triphosphate (ATP) as a energy source for the continuous movement of molecule against its concentration gradient.
Active transport function continuously because constant process of diffusion allows the movement of solutes in other direction.
For example cells are having higher concentrations of potassium (K+) and lower concentrations of sodium (Na+) in comparison to extracellular fluid. concentration gradient supports diffusion of Na+ ion into the cells and diffusion of K+ out of the cell. In such manner other small substances like glucose and amino acid constantly move across the plasma membranes and maintains concentrations of ions and other substances required for the body.
Hence, the correct option D.
What are the atoms that make up carbohydrates
Answer:
All carbohydrates, including sugar, contain the same three elements: carbon, hydrogen and oxygen. Different arrangements of these elements form single units to make different types of carbohydrates.
Carbon and hydrogen
What is the composition of the most common mineral compounds that make up Earth's crust and mantle? sulfates, oxygen, and one or more nonmetal elements carbonates, hydrogen, and one or more organic compounds silicon, oxygen, and one or more metal elements oxalates, oxygen, and one or more organic compounds
Answer:
silicon, oxygen, and one or more metal elements
Explanation:
The answer is Silicon, Oxygen, and one or more metal elements!! I took the test and got this answer right!
Susan wants to see how different chemicals in the soil affect plant growth. Therefore, she gets all of the same type of plant, sets them up in the same place, waters them the same amount, but then puts different chemicals on each of them. What is the independent variable in Susan's experiment?
The chemicals
The plant growth
The amount of water
Where she set-up the plants
Answer:
The chemicals
Explanation:
When a scientific experiment is proposed, it is necessary that the dependent and independent variables are identified.
An independent variable is one that does not need the influence of another variable and is responsible for presenting a result that depends on its manipulation. The dependent variable, on the other hand, is one that is influenced by the dependent variable and needs its manipulation to generate a result.
In the question above, we saw that Susan wants to know what results the manipulation of different chemicals will have on plant growth. With that, we can say that chemicals are the independent variable, while plant growth is the dependent variable.
Which joint in the human body has the widest range of movement?
Ball and Socket Joint
This type of joint allows for a wide range of rotation and movement. The shoulder and hip are ball and socket joints.
The ball-and-socket joint, such as the hip and shoulder joints, enables the widest range of movement in the human body.
Ball-and-Socket Joint: The joint with the greatest range of motion is the ball-and-socket joint. For example, the hip joint and the glenohumeral (shoulder) joint are ball-and-socket joints that allow extensive movement in different directions.
chemical eric 8. It also turns out that he has unpredictable shock responses, so that a small cut needing three stitches left him pale and in shock while breaking his left wrist in at least 15 places did not. What hormone could be involved?
Answer:
The correct answer is- cortisol, and prostaglandins.
Explanation:
The shock response take place when the body overwhelmed with the responses due to infection or injury. The shock response is regulated by the hormones that play major role in the body to fight against these injuries and infections.
Cortisol is primary hormone related to the stress conditions that lead to increase glucose level in body and blood to repair tissue however in some condition due to cortisol production issues did not play its role as mention in the question. ACTH impacts the adrenal gland and the production of this hormone can be compromised.
High levels of prostaglandins also play a role in the healing of the injury that takes place by causing inflammation redness and pain at the site of injury.
Thus, the correct answer is - cortisol and prostaglandins.
Adrenaline (Epinephrine) is the hormone involved in Eric's unpredictable shock response. It is released during moments of stress, instigating the 'fight or flight' response. Inconsistent reactions could result from varying adrenaline release and body reactions.
Explanation:The hormone involved in Eric's unpredictable shock response could be Adrenaline, also called Epinephrine. Adrenaline is a hormone released by the adrenal glands that acts primarily in the body's response to stress, enhancing alertness, and preparing for physical expenditure, such as the 'fight or flight' reaction.
Shock response in such a scenario could be attributed to the sudden rush or lack of adrenaline. This hormone is capable of resulting in varying reactions depending on how the body releases and reacts to it, as exemplified by Eric's contrasting responses to different injuries.
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The dog family is Canidae. Some well-known members of the dog family are the domestic dog, Canis familiaris; the coyote, Canis latrans; and the red fox, Vulpes fulva. If this classification represents phylogenetic relationships among the three species, we can conclude that the people who gave these animals these names concluded that __________.
a. domestic dogs evolved from coyotesb. domestic dogs and coyotes have a different ecological niche than foxesc. the common ancestor of coyotes and domestic dogs is more recent than the common ancestor of foxes and domestic dogsd. foxes are more closely related to dogs than they are to coyotes
Answer:
The correct answer is c. the common ancestor of coyotes and domestic dogs is more recent than the common ancestor of foxes and domestic dogs
Explanation:
The Canidae family includes foxes, wolves, coyotes, jackals, foxes, and domestic dogs. Both dogs and coyotes are evolved from ancient wolves and all three can interbreed to produce hybrids.
Dogs are evolved from gray wolves and then domesticated by humans. Humans did the selective breeding of dogs which resulted in artificial evolution of dogs.
Coyotes are evolved from eucyon which was a primitive wolf. Most scientists believe that C. lepophagus is the ancestor of wolves, coyotes, and dogs. Red fox can not interbreed with dogs, coyotes, and wolves that shows that it does not share a more recent ancestor with these three.
Therefore, the correct answer is c.
Which of these is not a component of a molecule of adenosine triphosphate (ATP)?
adenosine
phosphate
deoxyribose sugar
ribose sugar
Answer: The right answer is Deoxyribose sugar
Explanation:
ATP consists of adenosine (this is an adenine ring and a ribose sugar) – and three phosphate groups (triphosphate).
Hope this helps
Final answer:
Deoxyribose sugar is not a component of ATP; instead, ATP contains adenosine (adenine and ribose sugar) and three phosphate groups.
Explanation:
The component that is not a part of an adenosine triphosphate (ATP) molecule is deoxyribose sugar. ATP is composed of adenosine, which consists of adenine and ribose sugar, and three phosphate groups. Deoxyribose sugar is found in DNA, not ATP. The ribose sugar in ATP is a five-carbon sugar that is crucial for the molecule's structure and function, particularly in storing and transferring energy within the cell.
18. Of what are phospholipids important components?
A.the double bond in hydrocarbon chains
B.the plasma membrane of animal cells
C.the ring structure of steroids
D.the waxy covering on leaves
Phospholipids are vital components of the plasma membrane of animal cells. They formulate a lipid bilayer which controls transportation of substances across the membrane.
Explanation:Phospholipids are important components of the plasma membrane of animal cells. Phospholipids form a lipid bilayer, which is the basic structure of a cell membrane. This bilayer is semi-permeable and allows the transportation of specific substances across the cell membrane. The structure of phospholipids, with a hydrophilic (water-loving) head and two hydrophobic (water-fearing) tails, make them optimal for this role in cell biology. An example of a cell-regulation process involving phospholipids is the transportation of ions and small molecules across the membrane.
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What does the Peripheral Nervous System control ?
Some of your peripheral nervous system (PNS) is under your voluntary control - the nerves that carry instructions from your brain to your limbs, for example. As well as controlling your muscles and joints, it sends all the information from your senses back to your brain.
I copied this off a website but I checked my sources and you can always look it up too!!
Answer:
Digestion and temperature control.
Explanation:
Under your voluntary control there is some peripheral nervous system (PNS) - the nerves which helps in carrying the instructions from brain to limbs. For eg. while controlling your joints and muscles , it sends all the information to your brain from your senses. Brain automatically controls the other part of PNS.
Peripheral nervous system (PNS) is known as the autonomic nervous system. Without thinking it manages some things like digestion and temperature control.
Photosynthesis is made up of both light-dependent and light-independent reactions. Identify the products of the light-dependent portion of photosynthesis. ADP, NADP+, and glucose ATP, NADPH, and oxygen NADP+, oxygen, and glucose Carbon dioxide, water, and ATP
The products of the light-dependent reactions in photosynthesis are ATP (adenosine triphosphate), NADPH (nicotinamide adenine dinucleotide phosphate), and oxygen. These components are created by converting absorbed solar energy into chemical energy, which are then used to fuel further reactions in photosynthesis.
Explanation:Photosynthesis, fundamental to life on Earth, occurs in two primary stages: the light-dependent reactions and the light-independent reactions (also known as the Calvin Cycle). The question pertains to the products of the light-dependent reactions.
During the light-dependent reactions, energy from sunlight is absorbed by chlorophyll within the photosynthetic membranes. This process essentially converts light energy into chemical energy. This takes form as ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate), often considered 'energy carriers'. Additionally, the light-dependent reactions also result in the creation of oxygen, a byproduct formed when water molecules are split to provide the electrons for photosynthesis.
Therefore, the correct answer is: ATP, NADPH, and Oxygen. These molecules then provide energy for the light-independent reactions (Calvin Cycle), which lead to the production of glucose, a form of usable energy for plants.
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An organism was plated on MM1, TSA, and BHI. The organism grew only on BHI. From this information, you can conclude that the organism likely is ___________. not fastidious Gram variable fastidious Gram positive
Answer:
The alternative is fastidious
Explanation:
We can conclude that it is a fastidious microorganism since it grew only in BHI medium. If it had grown in every culture media, it would be not fastidious.
Fastidious bacteria need specific nutrients and vitamins for their multiplication and cannot grow well in generalist culture media.
Which of the following substances contained the most catalase?
Question 1 options:
A.Chalk
B.Potato
C.Leaves
D.Liver
Answer: B. Potato
Explanation:
The catalase is an enzyme which can be seen in all living organisms which are exposed to the action of oxygen. It's function is to catalyze the decomposition of hydrogen peroxide into water and oxygen. This enzyme is protective against the oxidative damage caused to the cells of the organisms.
The large concentration of catalase can be seen in potatoes.
Some antibiotics bind to the bacterial enzyme, _____, which effectively stops bacterial growth because bacteria need this enzyme to complete replication. Eukaryotic cells are not harmed because they are linear and don't use the same type of this enzyme.
Answer:
bacteria
Explanation:
because the bacteria only enzyme
A certain species of desert lizard digs tunnels in which to lay its eggs. The eggs must incubate inside the tunnel for several weeks before hatching, and they fail to hatch if they are disturbed at any time during this incubation period. Yet these lizards guard their tunnels for only a few days after laying their eggs.
Which of the following, if true, most helps explain why there is no need for lizards to guard their tunnels for more than a few days?(A) The eggs are at risk of being disturbed only during the brief egg-laying season when many lizards are digging in a relatively small area.(B) The length of the incubation period varies somewhat from one tunnel to another.(C) Each female lizard lays from 15 to 20 eggs, only about 10 of which hatch even if the eggs are not disturbed at any time during the incubation period.(D) The temperature and humidity within the tunnels will not be suitable for the incubating eggs unless the tunnels are plugged with sand immediately after the eggs are laid.(E) The only way to disturb the eggs of this lizard species is by opening up one of the tunnels in which they are laid.
Answer:
a. The eggs are at risk of being disturbed only during the brief egg laying season when many lizards are digging in a relatively small area.
Explanation:
Lizards work like this, some species have egg to reproduce the babies, in this case, the lizard just stay some days to watch that there are no possible risk for the eggs. If the animal is completely sure that is a safe and a good place to leave the eggs, the lizard continue to do its own life.
After some months, the baby lizard need to figure out how to survive in this new world, as his/her mother did. They need to use its instinct.
Body posture is best described as ___________.
a. a characteristic way of bearing one’s body
b. clothing and accessory decisions that individuals choose to accent their body features
c. human movement that is used to communicate messages between people
d. the way in which individuals try to present their body type
Answer:
The correct answer is c. human movement that is used to communicate messages between people.
Explanation:
Body posture comes under non-verbal communication. Most of the time people communicate non-verbally than verbally by facial expression, body posture, appearance, and gesture.
Body posture says a lot of things about a person like if a person's body posture is straight that shows that the person is focused, interested and confident but if a person has stooped posture while sitting or standing gives a message that the person is bored and lack self-confidence.
Body posture also affects the health and personality of any individual. Day to day lifestyle of modern life is hugely responsible for people's bad body posture and health issues.
Therefore, the correct answer is c. human movement that is used to communicate messages between people.
When selecting the proper microscope to view a sample, you should choose a/an ___________ microscope to look at a fresh lung tissue (whole organ) a/an __________ microscope to observe the patterns of cells on a slide, and a/an __________ microscope to study individual organelles within cells in great detail.Select one:a. compound, electron, dissectingb. dissecting, compound, electronc. electron, dissecting, compoundd. dissecting, electron, compounde. electron, compound, dissecting
Answer:
The correct answer is option B. Dissecting, compound, and electron.
Explanation:
Dissecting microscopes are used to study the surface of the individual specimen. It is a stereoscopic microscope that means it has two distinct lenses to provide two different images to get three-dimensional details.
Compound microscopes are the instruments that magnify the image of a small object. It magnifies the image at two stages by the objective lens and an eyepiece. Magnification of these is higher than normal or stereo microscopes.
Electron microscopes are a microscope that uses an accelerated electron beam to reflect an image of the specimen by bouncing off the surface of the specimen. It is used to study the comprehensive structure of the specimen.
Thus, the correct answer is - b.