Answer:
The activities of enzyme depends on the temperature, ionic conditions and the pH of the surroundings.
Explanation:
Effect of temperature on enzymes
Enzymes show low level of functioning at lower temperatures. As the temperature is raised, the activity of the enzyme increases. The enzyme activity becomes optimal at a specific temperature. Beyond this temperature, the enzyme's activity rate starts to decline until it gets denatured.
Effect of ionic conditions on enzymes
Studies show that certain enzymes require some cations for functioning. But an increased amount of cations or anions can inhibit the functioning of the enzymes.
Effect of pH on enzymes
Each enzyme has an optimum pH at which it works best. If the pH is increased or lowered than this optimum pH, then the activity of the enzyme starts declining until it gets denatured. Most enzymes work best at pH 7.0
For the following animals give their specific habitat and their distinct features (and the purpose of those features).
Birds
Fishes
Reptiles
Amphibians
Insects
Mammals
LOTS OF POINTS!!!
100 POINTS!!!!
ANSWER BIOLOGY!!!!!
Explanation:
birds= hollow bone structure 4 flight. scales on (feet), defined as "raptors" flight feathers, thicker core for uplift, shape of beak 4 food it eats.
fish= natural "slime coat" to protect scales from water or pollution damage, have gills 2 absorb o2 from h2o, streamlined 2 swim in h2o, find to turn, dart, escape predators.
reptiles= cold- blooded, have 2 bask in sun so it can stay warm at night, eats bugs, other reptiles 4 nourishment, can sometimes change color 2 match its surroundings, or has color of surroundings.
amphibians = aquatic usually, needs moisture, goes thru metamorphosis, egg, tadpole, frog (both land & h2o bearing.
insects= eat other insects or foliage, lay eggs on leaves, hibernate or die in cold weather, butterflies make cocoons 4 next generation.
mammals= warm blooded, have sex with 1 mate or many, gives birth, usually are preyed upon by predators ( lion, tiger, etc...) hope this helps, good luck!
Answer:
birds= hollow bone structure 4 flight. scales on (feet), defined as "raptors" flight feathers, thicker core for uplift, shape of beak 4 food it eats. fish= natural "slime coat" to protect scales from water or pollution damage, have gills 2 absorb o2 from h2o, streamlined 2 swim in h2o, find to turn, dart, escape predators. reptiles= cold- blooded, have 2 bask in sun so it can stay warm at night, eats bugs, other\oundings. amphibians = aquatic usually, needs moisture, goes thru metamorphosis, egg, tadpole, frog (both land & h2o bearing. insects= eat other insects or foliage, lay eggs on leaves, hibernate or die in cold weather, butterflies make cocoons 4 next generation. mammals= warm blooded, have sex with 1 mate or many, gives birth, usually are preyed upon by predators ( lion, tiger, etc...) hope this helps, good luck!
The top layer of soil in the tundra that thaws in the summer is called the _____.
A. active zone
B. dense mat
C. photic zone
D. permafrost
Answer:
A.
Explanation:
The arctic soil is so cold that the ground beneath the tundra surface remains frozen all year. This permanently frozen ground is called permafrost. Each summer, when the sun warms the tundra surface, the top few inches of soil thaw. This melted part is called the active layer.
Answer: the active zone.
Explanation: The top layer of the soil in the tundra is called the active zone
Question 10 of 10
Because of global warming, ocean surface temperatures are rising. Which of
the following is another possible consequence?
O A Low tides might disappear
O B Earth's rotation might change direction
O Sea ice might melt
O Bayres might change direction
Answer: My best guess would have to be (Sea ice might melt)
Explanation:
Ocean warming. The ocean absorbs most of the excess heat from greenhouse gas emissions, leading to rising ocean temperatures. Increasing ocean temperatures affect marine species and ecosystems. Rising temperatures cause coral bleaching and the loss of breeding grounds for marine fishes and mammals.
Because of global warming, ocean surface temperatures are rising, and another possible consequence is that sea ice might melt, which is in the third scenario as global warming causes the earth's temperature to rise.
What is the significance of the melting of the ice belts?The melting of the ice belts has negative impacts on the environment, as melting ice in the Arctic and Antarctic regions contributes to sea level rise that negatively affects infrastructure and ecosystems near the coast and contributes to climate change by interfering with global weather patterns.
Hence, because of global warming, ocean surface temperatures are rising, and another possible consequence is that sea ice might melt, which is in the third scenario as global warming causes the earth's temperature to rise.
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the average of 65.4, 65.3, 65.5
Answer:
65.4
Explanation:
To find the average, add all the values together and divide by the number of values (3)
[tex] \frac{65.4 + 65.3 + 65.5}{3} [/tex]
average = 65.4
Matthew built a new train track and he would like to make the train move faster. How can he do this
Answer:
Explanation:
By putting the train track against something pointing downwards. Gravity will take over and the train will pick up speed as it goes down the hill.
To make the train move faster, Matthew should focus on the train's engine power, reduce friction between wheels and the track, and consider an aerodynamic design for the train to efficiently achieve higher speeds.
When discussing the motion of a train and how to increase its speed, several factors can come into play, such as the power of the train's engine, the friction between the train wheels and the track, and the aerodynamic design of the train. To make the train move faster, Matthew could ensure that the engine is powerful enough to increase the train's acceleration. Reducing friction through improved wheel design or better track material could also help. Additionally, the aerodynamic shape of the train will reduce air resistance, allowing it to reach higher speeds more efficiently.
The immune system has cells that
look for something common
among the pathogens that tend to
attack. When it recognizes this, it
goes to the pathogen and does
what?
A. eats and kills it
B. recognizes and talks to it
C. communicates and asks it to leave the body
Answer:
A
Explanation:
The pathogen is not recognized to the cells, the cells attack and kill that pathogen as if it was a virus trying to keep your body at equilibrium.
Final answer:
The immune system, upon recognizing a pathogen, activates immune cells that phagocytize the pathogen. It makes use of both innate non-specific defenses and adaptive specific defenses, and can remember past infections to provide immunity. The correct answer is option A.
Explanation:
When the immune system recognizes a pathogen, it can respond in various ways, including the activation of immune cells that phagocytize (eat and kill) the pathogen. Components of the immune system are constantly on the lookout for signs of pathogens. Upon detection, immune factors are mobilized to the infection site, where they identify the pathogen, mobilize cells and molecules to efficiently combat the invader, and halt the response once the infection is cleared. The innate immune system provides non-specific defenses, while the adaptive immune system creates tailored, specific responses and can remember past infections for more efficient future responses. This memory can last for decades and involves both the lymphatic system and immune cells such as B and T lymphocytes to provide immunity.
What is xylem in plants?
Answer:
Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients. Hope this helps you out! :)
To what ecosystem are coral reefs compared? Why is it important to conserve biodiversity? (Site 1)
Explanation:
Coral reefs are the part of marine ecosystem and their diversity is immense.
Coral reefs plays an important role in maintaining the ecological balance and they are:
Shield coastlines from the hurting effects of wave movement and tropical storms, give living spaces and safe house to various marine living things, are the wellspring of nitrogen and other central enhancements for marine regular pecking orders, help carbon and nitrogen fixing, help with enhancement reusing.
Answer:
To what ecosystem are coral reefs compared Why is it important to conserve biodiversity
Occupying less than one percent of the ocean floor, coral reefs are home to more than twenty-five percent of marine life. Why is that important? A highly biodiverse ecosystem, one with many different species, is often more resilient to changing conditions and can better withstand significant disturbances.
Explanation:
Sliver
Protons 47
Neutron 61
Electrons 47
How many total particles are in the nucleus of a silver atom
Answer: Structure of the Silver Atom. The silver atom has 5 electron orbits (energy levels) with a total of 47 electrons. Beginning with the orbit closest to the nucleus and working outward, the number of electrons per orbit should be: 2, 8, 18, 18, 1. Of course, the nucleus contains 47 protons and 61 neutrons.
What is the role of stomata in photosynthesis
It is because of Stomata that carbon dioxide that enters into the leaves through the stomata.
(Hope this helps
Describe at least three of the water cycle processes you have learned about in the course
Answer:
Evaporation: Water evaporates from the ocean, from the earth's surface and also by organisms, in the phenomenon of perspiration in plants and sweating in animals. Living things, especially plants.
Condensation: Water in the form of steam rises and condenses forming clouds, formed drops of water.
Precipitation: It occurs when the drops of water, which form the clouds, cool, accelerating the condensation and joining the drops of water to form larger drops that eventually precipitate to the earth's surface. Precipitation can be snow or hail or rain
Explanation:
Answer:
Through the hydrologic cycle.
Explanation:
Water moves through the hydrologic cycle in three forms: solid, liquid or gas. When the sun shines on the Earth and it’s bodies of water during the day, a process called convection causes some liquid water to evaporate into the air in the gaseous state called vapor, binding with dust particles in the air to form clouds. When the water vapor in the atmosphere reaches the point of saturation, the air cools, water condenses back into a liquid and falls down to Earth in the form of precipitation. Approximately 10% of the water from precipitation is absorbed by plants. The rest of it either collects in oceans, lakes and rivers by runoff or it percolates through many layers of sand and rock underground in the earth’s surface, until it slowly makes its way into larger bodies of water by gravity. Plants use the water they absorb for photosynthesis. Humans, animals and insects absorb some of that water when they eat plants. In the heat of the sun, water once again gets from lakes and oceans back to atmosphere by evaporation, and the hydrologic cycle repeats again by water falling as precipitation.
What bone creates prominence of cheek inferior and lateral to the eye?
Answer:
There are fourteen facial bones in total out of which zygomatic bone is the facial bone that creates prominence of the cheek inferior and lateral to the eye.
Explanation:
Zygomatic bone is said to be as the cheek bone which is paired and irregular in shape. It articulates with the maxilla, the temporal (to meet zygomatic process), sphenoid as well as the frontal bone of the face. It also forms the lower and lateral part of orbital margin. The maxilla and the mandible forms the upper and lower jaw.
The bone that creates the prominence of the cheek, positioned inferior and lateral to the eye, is the Zygomatic Bone. It provides an attachment site for facial muscles and helps form the structure of the face.
Explanation:The bone that creates the prominence of the cheek inferior and lateral to the eye is known as the Zygomatic Bone. This bone helps form the structure of your face and gives shape to your cheeks. The prominence of this bone can particularly be felt when you touch the part of your face directly below and to the side of your eye.
It's important for facial muscles to have an attachment site, and for the zygomatic bone it serves as an attachment for several muscles involved in facial expression and mastication (chewing). The Zygomatic bone plays an important role in our anatomy of the face.
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Which organelles are replicated during G1 phase, and which during G2?
Some sources state that, depending on the organelle, both phases include organelle replication.
Answer:
G1 involves cell growth an protein synthesis, G2 involvesfurther growth and protein synthesis
Final answer:
In the G1 phase, cells grow and begin the process of organelle replication while in the G2 phase, cells continue to grow, replicate some organelles, and prepare for mitosis by synthesizing proteins and providing resources for the mitotic spindle.
Explanation:
The G1 phase of the eukaryotic cell cycle is characterized by cell growth, where the cell increases in size and organelles begin to replicate in preparation for cell division. This phase involves routine metabolic processes and making proteins needed for DNA replication.
During the G2 phase, the cell continues to grow and makes further preparations for mitosis. It is during this phase that the cell replenishes its energy stores, synthesizes proteins necessary for chromosome manipulation, and duplicates some of its organelles. The cytoskeleton is also dismantled to provide resources for the mitotic spindle. This phase ensures that the cell's machinery is ready for the subsequent mitotic phase where the nucleus and the cytoplasm will be divided during mitosis and cytokinesis.
Look at the picture below.
What function does this structure have?
O
A. To protect the organism
O
B. To help the organism reproduce
O
C. To see the outside world
O
D. To hear the outside world
Answer:
the answer is A
Explanation:
it hides in its she'll when preditors are near or are going to attack iy
Answer: Option A. To protect the organism
Explanation:
The given picture is of a turtle and it is showing a structure of shell that functions for the protection of animal.
The shell is the outer covering of the turtle which is made of skeletal and dermal bone which helps in providing structural framework and protection against prey. This is a very hard substance that acts as a shield and also able to survive fossilization.
It also helps the turtle to survive in the extreme condition as it get hide inside its shell.
Hence, the correct option is A.
in the image below, what molecule is being released by cellular respiration and used in photosynthesis
Answer:
the answer is B
Explanation:
plants need carbon dioxide to be able to produce anything
The molecule released by cellular respiration is carbon dioxide.
What is photosynthesis?Photosynthesis is the process through which plants use daylight, water, and carbon dioxide to create oxygen and energy inside the shape of sugar.
photosynthesis is the method via which green flora and certain different organisms rework light electricity into chemical strength. during photosynthesis in green vegetation, light electricity is captured and used to convert water, carbon dioxide, and minerals into oxygen and power-rich organic compounds.
Photosynthesis is arguably the most vital biological method on the planet. by way of liberating oxygen and eating carbon dioxide, it has converted the arena into the hospitable environment we recognize today.
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Which goes in which plz help me 20 points and brainliest.and a photo of my dog
Answer:
cute dog!!!
Explanation:
i'll do my best....
CAUSE EFFECT
sudden decrease in decrease in
clown fish population anemone population
____________________________________________________________
sudden decrease in sudden increase in chipping
giant Triton population sparrow population
____________________________________________________________
sudden increase in hermit sudden decrease in
crab population clown fish population
Is this statement true or false?
In a convection cell, cold dense material rises, while hot, less dense material sinks.
a) true
b) false
Answer: False
Explanation:
It's the opposite! Hot, less material rises while the cold, more dense material sinks
Answer:
FALSE
Explanation:
The materials like magma when heated at great depth in the mantle due to the heat energy provided by the interior of the earth, it gets warm and less dense. This materials then starts to rise up due to the force generated by the magma in the upward direction. This hot magma then rises up and eventually cools due to the lowering of temperature in the upper portion of the mantle. This materials after being cooled, becomes less dense and sinks.
This process takes place in a form of a convection cell.
Hence, the above statement is false.
Which organelle is present in the cells of a mouse but not
present in the cells of a bean plant?
A.
cell wall
B.
chloroplast
C. cell membrane
D.
centriole
Answer:
D) centriole
Explanation:
nave a good day {:
The organelle present in mouse cells but absent in bean plant cells is the centriole. This is because centrioles are usually found in animal cells and have a primary role in cell division. Plant cells typically lack these organelles and use different mechanisms for cell division.
Explanation:The organelle that is present in the cells of a mouse but not present in the cells of a bean plant is the centriole. Centrioles are cellular structures involved predominantly in cell division processes like mitosis and meiosis, and are typically found in animal cells. Plant cells, such as those in a bean plant, commonly lack these organelles because they have other mechanisms to handle cell division.
All cells, whether they are plant or animal, have a cell membrane. Chloroplasts are found in plant cells for photosynthesis but are absent in animal cells. A cell wall is a characteristic organelle of plant cells, and is not found in animal cells. Therefore, answer option D, centriole, is the correct answer.
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How do particles in a solid differ from particles in a liquid?
Answer:
The particles in a solid are tightly packed and locked in place, The particles in a liquid are close together (touching) but they are able to move/slide/flow past each other. The particles in a gas are fast moving and are able to spread apart from each other.
Explanation:
Answer:
particles in a solid are closely packed together and vibrate, rather than move freely, whereas in a liquid particles are further spread apart and move around
Explanation:
particles are always moving, but in the three different phases (solid, liquid and gas) they move at different speeds. in a gas they vibrate, in a liquid they begin to move more openly and freely because the particles are more spread out and then in a gas the particles are racing around because the particles are even further spread apart
when molecules are even throughout a space,it is called
Answer:
Equilibrium
Explanation:
When the system is in equilibrium, this means there is no further change in the system because the opposing forces (forward & reverse), such as those in diffusion, are at balance and therefore there seems to be stability. Usually this is when the system is at its highest entropy of lowest Gibbs free energy.
It is possible to calculate the equilibrium constant of a reaction aA+bB⇋cC+dD
Kc = ([C]^c*[D]^d) /( [A]^a*[B]^b)
The term used to describe when molecules are even throughout a space is equilibrium.
When molecules are evenly distributed throughout a space, it is called equilibrium. In chemistry, equilibrium refers to a state where the forward and reverse reactions occur at the same rate, resulting in a constant concentration of molecules in the system.
For example, consider a container divided into two compartments by a permeable barrier. Initially, molecules on one side may be more concentrated, but over time, they will diffuse and spread equally in both compartments, leading to equilibrium.
This concept is significant in many chemical processes, such as the reaction rates, solubility, and phase changes.
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A particular ant species has four pairs of chromosomes. Identify the genetic possibilities from independent assortment of a gamete.
Answer:
Here, no of pairs of chromosomes in ant = 4.
Now during the gametogenesis, each pair of chromosome will get separated in one gamete each.
So, number of unpaired chromosomes = 4 unpaired chromosomes.
The gametes are now haploid, i.e. Without paired chromosomes.
Now, only 1 of the one pair of chromosomes will be carried inside a gamete,
Lets assume, the gene present in the cell chromosomes is heterozygote
So, there will be 2 possibilities.
So, their probability will result as [tex]=2\times2= 4[/tex]possibilities.
Then for 4 chromosomes would be [tex]4^4=256[/tex] chromosomes.
Answer:
The total number of possibilities for four chromosomes would be 4^4 = 256 possibilities in the gamete or offspring.
Explanation:
Given,
Organism – Ant species
Number of chromosomes = 4 pairs
Genetic possibility due to independent assortment = ?
Solution:
During the gamete formation, only one chromosome from a pair foes to the gamete as meiosis occurs. Therefore, the gamete will have only 4 chromosomes instead of 4 pairs. The gamete can get any of the two chromosome from a pair and thus, it has 2X2 = 4 possibilities.
Therefore, total number of possibilities for four chromosomes would be 4^4 = 256 possibilities in the gamete or offspring.
What is a hypothesis?
A. A conclusion that you make about an experiment
O
B. The way an experiment is performed
C. The technology used in an experiment
O
D. An educated guess of the answer to a question
Answer:
d
Explanation:
Which statement best explains why electrical signals in the body are often based on
ions?
Olons contain a single atom.
Olonic bonds are very strong.
lons can gain electrons.
Olons are charged particles.
Answer:
Ions are charged particles, that explains why they have either a positive or negative charge. Since electrical signals contain charges, that also explains why they are often based on ions. Your answer would be D
Answer:
lons are charged particles is the correct answer.
Explanation:
Electrical signals in the body are usually based on ions because ions are charged particles.
They produce an electrical gradient, therefore electrical signals are transferred.
The electrical signals in the neuron occur because ions flow over the neuronal layer as the Ions are the electrically charged particles.
The body requires ions to transmit the electrical impulse along the nerves.
The pollen from one specific plant species can fertilize all different types of plants true or false
Answer:
This is true.
Explanation:
The pollen from one plant can fertilize a different type of plant, this is called cross-fertilization. This will cause a combination of both plants to be created.
3. Which of the following is a chemical change ?
-ice melting
-Ice being carved
- water boiling
- water breaking down into hydrogen and oxygen
4. Which of the following is NOT a pure substance?
-milk
- oxygen
- water
- carbon dioxide
5. Matter that has a definite volume but no definite shape is a..?
- liquid
- solid
- gas
- plasma
6. Forces of attraction limit the motion of particles most in?
- a solid
- a liquid
- a gas
- both a liquid and a gas
Fill IN THE BLANK
7. A(n)............ change occurs when a material changes shape or size but the composition of the material does not change.
8.......... properties can be observed only when the substances in a sample of matter are changing into different substances.
9. Materials can be classified as solids, liquids, or gases based on whether their shape and...... are definite or variable.
10. The ....... theory of matter states that all particles of matter are in constant motion.
Answer:
3. Water breaking down to hydrogen and oxygen
4. Water
5. Gas
6. Both a liquid and a gas?
7. Physical Change
8. Chemical Properties
9. Volume
10. Kinetic-Molecular Theory of Matter
Explanation:
cause yeet
Which statement describe how starts are born
Answer:
A star is born when atoms of light elements are squeezed under enough pressure for their nuclei to undergo fusion
Explanation:
Answer:
Explanation:
just adding on the other statement above....... All stars are the result of a balance of forces: the force of gravity compresses atoms in interstellar gas until the fusion reactions begin.
what is the function of a fasicled root??
Answer:
what is the function of a fasicled root??
Excretion is best described as the removal of
1
metabolic wastes from a cell
2.
toxic wastes by the process of cyclosis
w
water molecules from dipeptide hydrolysis
undigested material from the digestive tract
Answer:
Answer is B: The Removal Of Metabolic Wastes From Cell
Explanation:
Excretion is best described as the removal of metabolic wastes from cells
Excretion refers to the process by which metabolic wastes are removed from a cell or an organism. This can include undigested material from the digestive tract. It does not include processes such as cyclosis or dipeptide hydrolysis.
Explanation:Excretion is best described as the process by which metabolic wastes are eliminated from an organism. In simpler terms, excretion is the removal of metabolic wastes from a cell. These wastes could be products of cellular metabolism like carbon dioxide or urea. It can also pertain to the removal of undigested material from the digestive tract, like fiber that our body cannot digest.
However, it does not refer to the removal of toxic wastes by the process of cyclosis, or the removal of water molecules from dipeptide hydrolysis, as these processes are more specific and separate from the general process of excretion.
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in general, what plant structure would have the most choloplasts?
A. vacuoles
B. plasmodesmata
C.roots
D. leaves
Answer:
...d
Explanation:
Answer:
D. leaves
Explanation:
Does simple diffusion go to high to low or low to high
Answer:
From high to low.
Explanation:
When we say "high to low" and "low to high", when talking about cells, diffusion, passive transport, etc. we are referring to the concentration of the solute in both sides of the biological membrane.
In simple diffusion, the molecules travel from a higher concentration to a lower concentration, in order to create a uniform environment.
The opposite of diffusion is osmosis, meaning that in osmosis the opposite happens; in this case, molecules are "attracted" to the higher concentration side of a biological membrane, and travel to it.
Hope it helped,
BiologiaMagister