Answer:
Rocks at sea level can be weathered by ocean waves.
Explanation:
Slope The steep sides of mountains and hills make water flow down them faster.
Which statement best describes the function of the
heart?
O A. The heart oxygenates the blood
OB. The heart produces red blood cells
O C.
The heart circulates the blood
OD.
The heart filters toxins from the blood
Answer:
the heart oxygenates the blood
Explanation:
What system hosts more biodiversity than any other ecosystem in the oceans?
Answer:
The coral reef
Explanation:
The coral reef system is widely known to be, and arguably the part of the ocean/marine ecosystem that hosts more biodiversity than all other ecosystems. The coral reef has several hundreds of individual reef systems housing up to 25 percent of the total marine life. It includes marine life such as sponges, algae, fishes, various invertebrates etc. It is home to hundreds of beautiful types of corals. The largest reef in the marine habitat is the Great Barrier Reef which is found Australia, covering about 2,400 km.
The coral reef ecosystem hosts more biodiversity than any other ecosystem in the oceans. Despite making up only 1 percent of the marine habitat, coral reefs harbor about one-third of the world's marine fish species. They are vital to maintaining biological diversity and environmental balance in the marine world.
Explanation:The system that hosts more biodiversity than any other ecosystem in the oceans is the coral reef ecosystem, found in shallow ocean waters. Coral reefs are home to a tremendous variety of life and are considered underwater rainforests due to their rich biodiversity. While the deep ocean water and deep ocean surface ecosystems are also vital, supporting large numbers of plankton and krill, coral reefs surpass them in terms of biodiversity.
Coral reefs harbor about one-third of the world's marine fish species, approximately 4,000 species, despite making up only 1 percent of marine habitat. They are also crucial for aquaria, with most marine aquaria stocked with wild-caught organisms from coral reefs. While other ecosystems such as deep ocean water and deep ocean surfaces ecosystems are important for aerobic respirators around the world, coral reefs still hold the highest biodiversity in the ocean.
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6. Feather length in a species of birds is controlled by
one gene. The L allele is for long feathers, while the
I allele is for short feathers. Write the 3 possible
genotypes found in this species of birds. Next to
each genotype, write the resulting phenotype.
rate co
Genotype
Phenotype
b.
Answer:
LL - long feathers; Ll - long feathers; ll - short feathers
Explanation:
Answer:
The world is so wired am I right
Explanation:
Train-moves I’m done wit jed
Which muscles is involved in normal quiet inspiration?
Answer:
The muscles that contribute to quiet breathing are the external intercostal muscles and the diaphragm.
Explanation: When drawing breath, the external intercostal muscles and diaphragm contract simultaneously.
What effects do keystone specie shave on an ecosystem?
A. They make prey species extinct
B. They reproduce biodiversity
C. They keep populations of species balanced
D. They cause primary disturbances.
Answer:c
Explanation:
place these in order
Water evaporates from a lake. Arrange the next steps of the water cycle in the correct order.
Water vapor condenses to form clouds.
Water flows down mountains and hills.
Water falls as rain, snow, and sleet.
Water joins streams or forms groundwater
Answer:
The correct order would be:
Water evaporates from a lake.
↓
Water vapor condenses to form clouds.
↓
Water falls as rain, snow, and sleet.
↓
Water flows down mountains and hills.
↓
Water joins streams or forms groundwater.
Water cycle refers to the cyclic movement of water in an environment. The water passes through various stages, namely:
evaporation and transpiration
condensation
precipitation
run off
Explanation:
Answer:
water falls as rain, snow, and sleetwater flows down mountains and hillswater joins streams or forms ground waterwater vapor condenses to form cloudsExplanation: this is the water cycle
The alpha bonds of carbohydrates are broken down during digestion by specific enzymes. Lactose contains a beta bond, which is digestible by lactase. Most carbohydrates that contain beta-glycosidic bonds are not digestible because humans lack the enzyme needed to break down the bond. Which of the following carbohydrates contain alpha bonds that are digestible by humans? a) pectin and stachyoseb) cellulose and hemicellulosec) amylose and amylopectind) raffinose and beta-glucan
Answer:
Amylose and Amylopectin contain alpha bonds therefore, CAN BE DIGESTABLE BY HUMANS.
NOTE:
It isn't much detailed because those are options and they have to be chosen I have just given the answer and not a fully detailed paragraph on it.
A population of 8,250 mice occupies the sand dunes in a coastal area. A severe hurricane washes out several miles of sand dunes. As a result, only 50 mice remain. The population has experienced
A. horizontal gene transfer.
B. gene flow.
C. a founder effect.
D. a bottleneck.
The population has experienced bottleneck effect. So, the correct option is (D).
What is Bottleneck Effect?Population bottleneck is also known as genetic bottleneck. It is defined as a sharp decrease in population size which is caused by environmental events such as famine, earthquake, flood, fire, disease, and drought; or human activities such as specific, widespread violence or deliberate killing, and human population planning.
The bottleneck effect is a type of genetic drift in which allele frequencies in a population change based on chance events. The change in frequency is completely random.
For the above given information, population of mice continuously decrease which results in 50 mice. This shows the Bottleneck Effect.
Thus, the population has experienced bottleneck effect. So, the correct option is (D).
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Researchers extracted DNA from blood samples obtained from two sisters and a brother affected by DYT2. The siblings' parents were neurologically normal, and there were no other DTY2 cases within the family.
Is the disease
A.
It is recessive because the father was neurologically normal and it is autosomal.
B.
It is dominant and because the mother was neurologically normal and it is autosomal.
C.
It is recessive and because the father was neurologically normal and it is X-linked.
D.
It is dominant and because the mother was neurologically normal and it is X-linked.
Answer:
Researchers extracted DNA from blood samples obtained from two sisters and a brother affected by DYT2. The siblings' parents were neurologically normal, and there were no other DTY2 cases within the family.
It is dominant and because the mother was neurologically normal and it is autosomal
Explanation:
Rank these events in the order that they occur during the repair of double-strand breaks by recombination:
A. After invasion of the homologous chromosome the 3’ end of the invading strand acts as a primer for DNA synthesis.
B. The broken ends are processed, with the 5’-ending strand selectively degraded to create 3’ overhangs.
C. The 3’ single strand extensions invade the homologous chromosome, displacing the homologous strand and base pairing with the complementary strand.
D. As a result of the two strand invasions, the two homologues are linked at two places and are called a branched intermediate.
Susan, a 67 year old female, is experiencing ataxia, or poor muscle coordination. when doctors perform a romberg test, the results are negative. this negative result indicates that susan's condition results from a peripheral nervous system disorder.
Correct Completed Questions; Susan, a 67 year old female is experiencing ataxia, or poor muscle coordination. Doctors perform a neurological exam and they find that Susan is not positive for the Romberg test. Describe what these findings suggest about the sources of Susan's ataxia.
Answer:s
In order to test for balance and positioning(proprioception) as a measure of neurological function, or to test level of intoxication alcohol during driving, Romberg test is usually conducted,which can be negative or positive.It is generally used to investigate the cause of loss of motor control in individuals.
Explanation:
A positive result showed that her ataxia was due to loss of positioning due to loss of sensory from sensory neurons.However if negative as in the case of Susan, then it is to due to abnormality/dysfunctions in the cerebellum, and not due to loss of sensory functions,
Distinguishing between Rotation
Explain the difference between rotation and revolution.
Then use these terms to explain how Earth, the moon,
and the Sun move relative to one another.
Answer:
For example, put a table in the middle of your room and spin around while going in a circle around the table going round the table is revolution spinning around by yourself without going around something is rotation. Another example is the Earth revolves around the sun while rotting on it's axis and the Moon revolves around the Earth. Just like the saying the world doesn't revolve around you. It means that the world isn't based off you. :) Hope this helped.
Explanation:
Brainliest
How are the two kingdoms of bacteria similar?
Answer:
There are two kingdoms of prokaryotes. These are the bacteria (or eubacteria ) and the archaebacteria (or the Archaea ). The members of these two kingdoms appear similar in shape and appearance.
The two kingdoms of bacteria are similar in that both are prokaryotes.
What are the kingdoms of bacteria ?Eubacteria are the most common type of bacteria. They are found in all environments and can be either harmful or beneficial to humans.
Archaea are a group of bacteria that are found in extreme environments, such as hot springs and acidic lakes. They are not as common as eubacteria, but they play an important role in the environment.
The two kingdoms of bacteria are similar in the following ways:
Both are prokaryotes. This means that they do not have a nucleus or other membrane-bound organelles.Both reproduce by binary fission. This is a type of cell division in which one cell divides into two identical daughter cells.Both use DNA as their genetic material. DNA is the molecule that stores genetic information.Find out more on bacteria at https://brainly.com/question/22202103
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Heart disease, diabetes, cancer, alcoholism, and many mental illnesses can best be described as __________. answer correct the results of an unhealthy lifestyle simple mendelian disorders multifactorial disorders with a possible polygenic component the symptoms of huntington's disease infectious diseases caused by microorganisms
Answer:
The preferable option for fill in the blanks will be-
Multifactorial disorders with a possible polygenic component
Explanation:
Heart disease, diabetes, cancer, alcoholism, and many mental illnesses can best be described as multifactorial disorders with a possible polygenic component.
The complex or multifactorial disorders are common medical problems like heart disease, type 2 diabetes, and obesity. These disorders do not have a single genetic problem because they are associated with the effects of multiple genes (polygenic). The polygenic effect combines with our lifestyle and environmental factors._________ are a variety of genes that have the potential to subvert the cell's own activities and push it to the malignant state. They encode proteins that have various functions in a cell's normal activities and can be converted to ________.
Answer:
The preferable options for the fill in the blanks will be -
Proto-oncogenes, oncogenes
Explanation:
Proto-oncogenes are a variety of genes that have the potential to subvert the cell's own activities and push it to the malignant state. They encode proteins that have various functions in a cell's normal activities and can be converted to oncogenes.
A proto-oncogene is a normal gene that becomes an oncogene when it is altered by mutation. Oncogenes causes cancer. Some Proto-oncogenes give signals during cell division. Other proto-oncogenes regulate apoptosis (programmed cell death).The body’s most extensive serous membrane is the ___________. Connecting its visceral and parietal layers is a double serous sheet called __________, which provides a route for blood vessels, lymphatics, and nerves. Organs behind the parietal layers are called ___________; those within this area are called ___________.
Answer:
peritoneum
mesentery
retroperitoneal
intraperitoneal
Explanation:
Among coelomates, which of these develops by spiral cleavage and the mouth forms before the anus
Answer:
Protosomes
Explanation:
Protosome is a multicellular organism whose mouth grows before the anus from a primary embryonic opening which includesphyla mollusk, arthropod or annelid. Protosomes are developed by spiral cleavage during embryo development.
Protosome animals have bilateral symmetry and three germ layers. Some of the examples of protostomes are snails and slugs (mollusk), earthworms (annelids), and spiders, lobsters, barnacles (arthropods).
Hence, the correct answer is Protosomes .
A steady increase in global temperature has been recorded between 1900 and today. Before concluding that this rise in temperature is the result of the increased burning of fossil fuels, which of the following questions would have to be answered?
A. What is the CO2 content in one metric ton of fossil fuels?B. Which gases are released when burning fossil fuels?C. What, if any, temperature rise was occurring prior to 1900?D. How have humans adapted to temperature change?
Answer:
What, if any, temperature rise was occurring prior to 1900?
Explanation:
Before concluding that that rise in temperature is the result of burning of fossil fuel, they would have check what temperature rise occurring prior to 1900 and check if there is any temperature rise prior to 1900.
Recent research has found that on one island of the Galapagos two finch species interbred. This interbreeding may have resulted in a hybrid species that ultimately led to the extinction of one of the species Darwin discovered. They call this speciation in reverse, or despeciation. Based on what you know about speciation, why are these terms appropriate?
Answer:
Speciation is the method by which unique species evolve from a common ancestor. In this case, two of these species that split from a common ancestor interbred and created a hybrid. This hybrid was apparently stronger and possibly better adapted to the environment, which led to extinction of a species formed by the initial speciation event.
Answer:
Speciation is the method by which unique species evolve from a common ancestor. In this case, two of these species that split from a common ancestor interbred and created a hybrid. This hybrid was apparently stronger and possibly better adapted to the environment, which led to extinction of a species formed by the initial speciation event.
Explanation:
Plato
Which of the following is NOT true about cells? (PLEASE ANSWER ASAP!!)
A. Cells never change.
B. Cells come from pre-existing cells.
C. The time it takes a cell to complete the cell cycle depends on the type of cell that is diving.
D. A cell spends most of its life in interphase.
The statement which is not true about cells is cells never change. Thus, option A is correct.
What is cell?The cell function of an animal cell that has been to perform like the hormone and it engage the production of the energy for the cells. The cell function of a plant cell is to carry out all of the functions necessary for survival.
Animal cells are the eukaryotic cells which has been surrounded by the plasma membrane. It contains the nucleus, and the organelles that are membrane bound. Plant cells are the basic building block of plant life and they include the cell wall and central vacuole which works together to give the cell rigidity.
Therefore, The statement which is not true about cells is cells never change. Thus, option A is correct.
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When a school of fish spawns, the males and females release sperm and eggs into the water. A sperm and egg cell unite to form the first cell of an offspring, which develops independently of its parents. Which term describes this process?
a.
external fertilization
b.
asexual reproduction
c.
parthenogenesis
d.
internal fertilization
Answer:
a.
external fertilization
A botanist created a linear model to predict plant height from soil acidity (pH level) for a certain type of plant. The slope of the model was 2.5 centimeters per pH level, the standard deviation of the sample of plant heights was 4 centimeters, and the standard deviation of the soil acidity was 1 pH level. What is the value of the correlation coefficient?
Answer:
0.625
Explanation:
The slope (m) of a linear regression line is ...
[tex]m=r_{xy}\cdot\dfrac{s_y}{s_x}[/tex]
Then we have ...
[tex]2.5=r_{xy}\cdot\dfrac{4}{1}\\\\\dfrac{2.5}{4}=r_{xy}=0.625[/tex]
The value of the correlation coefficient is 0.625.
Here, we are required to find the value of the correlation coefficient given the slope of the regression model and the standard deviation of the dependent and independent variables.
The value of the correlation coefficient is 0.625
and it is dimensionless.
The relationship between the slope of a regression model and the correlation coefficient is given by;
m = r (Sy/Sx)
where
m= slope of the regression model = 2.5cm/pH.r = the correlation coefficient = ?Sy = The standard deviation of the dependent variable i.e Plant height = 4cmSx = The standard deviation of the independent variable i.e soil acidity(pH level) = 1pHTherefore;
2.5 = r × (4/1)
r = 2.5/4
r = 0.625
P.S: It is important to know that the correlation coefficient is a dimensionless parameter.
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How is blood pressure measured?
systolic - at rest
systolic - heart relaxed
systolic - heart pumping
diastolic - exercising
diastolic - heart relaxed
diastolic - heart pumping
Answer:
systolic - pumping, diastolic - relaxed
Explanation:
the period of contraction is called systole, and the period of relaxation is diastole. when measured, your systolic pressure is when the heart is pumping, and diastolic is in between beats when the heart relaxes. hope this helps :)
In which kind of solution is the concentration of solutes the same inside and outside of the cell?
-isotonic
-hypertonic
-hypotonic
-concentrated
Answer:
Isotonic
Explanation:
Hope this helps!!!
Isotonic solutions is one in which the concentration of solutes the same inside and outside of the cell.
What are solutions?Solutions are substances which are made by dissolving a solute in a solvent.
Types of solutions based on solute strength are:
hypotonic solution isotonic solution andhypertonic solutionsIsotonic solutions is one in which the concentration of solutes the same inside and outside of the cell.
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PLZ HELP ME I WILL MARK YOU AS BRAINLIEST
write a write a paragraph (3-5 sentences) that explains how and/or why the skull got its name and what language it comes from (like Latin, Greek, etc.) The scientific word for this is called etymology.
Answer:
Middle English scolle ; of unknown origin; compare with Old Norse skoltr . Skull came from both Greek and Roman but I'm pretty sure it originated from Greeks. The word skull is derived from the Middle English word skolle, which in turn is probably a form of the Old Norse word skalli, which means a bald head.
Explanation:
what’s climate change
Answer:
Climate change is, "a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels."
A habitat contains all of the abiotic and
biotic factors an organism needs to live.
Agree or
Disagree
Answer:
Agree
Explanation:
The biotic factors of an ecosystem include all the populations in a habitat, such as all the species of plants, animals, and fungi, as well as all the micro-organisms. Also recall that the nonliving factors are called abiotic factors. Abiotic factors include temperature, water, soil, and air.
Match the following terms to their proper description:
middle ear, eardrum, inner ear, and the organ of Corti.
1. Contains fluid-filled channels set into the bones of the skull:
2. The organ of hearing:
3. Contains the hammer, anvil and stirrup:
4. Separates the outer ear from the middle ear:
The inner ear contains fluid-filled channels, the organ of Corti is the organ of hearing within the cochlea, the middle ear includes the ossicles (hammer, anvil, stirrup), and the eardrum separates the outer ear from the middle ear.
Explanation:The inner ear contains fluid-filled channels set into the bones of the skull. This region is crucial for both hearing and balance, encompassing the semi-circular canals and the cochlea.
The organ of Corti is the organ of hearing, situated within the cochlea of the inner ear. It contains hair cells that function as sensory receptors for auditory signals.
The middle ear contains the hammer, anvil, and stirrup (malleus, incus, and stapes respectively) which are the ossicles responsible for transmitting sound vibrations to the inner ear.
The eardrum or tympanic membrane is the structure that separates the outer ear from the middle ear, and it vibrates in response to sound waves.
Inner earOrgan of CortiMiddle earEardrumTwenty-five people developed symptoms of nausea, vomiting, and diarrhea three to six hours after attending a church picnic where they ate a ham and green bean casserole with cream sauce. The most likely cause of this case of food intoxication is _________.
a. Cholera toxin.b. Erythrogenic toxin.c. Aflatoxin.d. Botulinum toxin.e. Staphylococcal enterotoxin.
Answer:
e. staphylococcal enterotoxin
Explanation:
Staphylococcal enterotoxin is a toxin that is produced by the bacteria Staphylococcus aureus. It is a toxin found inside the gastrointestinal tracts of the human body which is why it is called an enterotoxin and it results in food poisoning when consumed by humans.
Staphylococcal enterotoxin is proteinous in nature and it can be found on dairy products such as milk or cheeses that have been contaminated by Staphylococcus aureus.
After consumption of the contaminated milk or cheeses, the person begins to experience symptoms of nausea, diarrhea as well as vomiting.
Staphylococcal enterotoxin is a very heat stable toxin which means even though you heat up a food contaminated with this toxin, the bacteria may die by the toxins would still remain in the food.
The best way to avoid food poisoning by Staphylococcal enterotoxin is to avoid eating contaminated foods.
The likely cause of food intoxication with symptoms appearing within three to six hours after eating a ham and green bean casserole with cream sauce at a church picnic is Staphylococcal enterotoxin produced by Staphylococcus aureus.
Explanation:The most likely cause of the described case of food intoxication, where individuals developed symptoms such as nausea, vomiting, and diarrhea within three to six hours after eating at a church picnic, is Staphylococcal enterotoxin. This kind of food poisoning occurs when Staphylococcus aureus contaminates food and produces enterotoxins. These toxins can cause the mentioned symptoms quickly after ingestion and are commonly associated with improperly stored meat and dairy products or due to poor hygiene during food preparation.
Such incidents underline the importance of maintaining proper food safety measures like thorough handwashing, reheating cooked foods to the recommended temperature of at least 60 °C (140 °F), and ensuring raw meats are cooked adequately to prevent bacterial growth. Additionally, when faced with symptoms of gastrointestinal distress, oral rehydration therapy with electrolyte solutions is a key treatment modality, mainly to prevent dehydration and support recovery.
Mucous membranes are quite thin and fragile. How can such delicate tissue provide defense against microbial invaders?
The mucus is a physical trap that contains a variety of antimicrobial chemicals.
The mucus contains a variety of antimicrobial chemicals and molecules.
The mucus secreted by the mucous membrane physically traps microbes.
Both the mucus and the outer layer of cells are shed frequently.
The mucus physically traps microbes, contains a variety of antimicrobial chemicals, and is shed constantly, along with the outermost layer of cells.
Answer:
The mucus physically traps microbes, contains a variety of antimicrobial chemicals, and is shed constantly, along with the outermost layer of cells.xplanation: