as a cell's size increases, what happens to the ratio of its surface area to its volume?
A:the ratio stays the same
B:the surface area increases as the volume increases
C:the surface area does not increase as fast as the volume increases
D:the ratio of surface area to volume does not matter
Answers
Answer:
Surface Area to Volume Ratios: Notice that as a cell increases in size, its surface area-to-volume ratio decreases. When there is insufficient surface area to support a cell's increasing volume, a cell will either divide or die.
Related Questions
Explain how the daily energy needs are different between the zebra and its predator, the lion. Be certain to include any important differences in the digestibility of these organisms' food sources, along with differences in digestive tracts. Cite any behaviors that may play a role in energy use as well.
Answers
Answer:
Explain how the daily energy needs are different between the zebra and its predator, the lion. Be certain to include any pertinent differences in the digestibility of these organisms’ food sources, along with differences in digestive tracts and energy spent on digesting. Cite any behaviors you feel may play a role as well.
Answer:
Explanation:
m
Purple flowers are dominant, white flowers are recessive. We are using the letter 'Na' for the flower color gene. What are all the possible allele
combinations for a purple flower?
-АА
-Аа
-аа
Answers
Answer:
.....46e72fhjw8wfjj29ajfj29zjfjqs jw9cjhq
What is a niche?
A- an organism’s ability to interbreed with other organisms
B- an organism’s ability to reproduce asexually and produce organisms identical to itself
C- an organism’s living and nonliving interactions with its environment
Answers
hi <3
the correct option would be option C
hope this helps :)
Answer:
C
Explanation:
Source: Trust me bro.
Honesty I heard it every day in biology classes for 2 years.
Cloning ________.
Help, is this the answer? assignment 18. question 8. oh my, did I answer this correctly? wink wink please answer if I did, to post this
Answers
Answer:
Cloning removes the nucleus from an egg cell and replace it with the nucleus from another organism.
More information :
The term cloning describes a number of different processes that can be used to produce genetically identical copies of a biological entity. The copied material, which has the same genetic makeup as the original, is referred to as a clone.To make a clone, scientists transfer the DNA from an animal's somatic cell into an egg cell that has had its nucleus and DNA removed. The egg develops into an embryo that contains the same genes as the cell donor. Then the embryo is implanted into an adult female's uterus to grow.Discuss the similarities between the three class of Bryophyta
Answers
Answer:
found in moist and damp places
lack true green leaves and stems
root-like structures called rhizoids are present that can be multicellular or unicellular
Explanation:
An unusually cold winter causes the squirrel population to decrease. This is an example of temperature as a
A. Carrying capacity
B. Limiting factor
C. Climax community
D. Pattern in space
Please and answer thank you!
Answers
Answer:
Most likely B
Explanation:
A - Carrying capacity is the amount of a species that can live in a given area with the given resources, weather does not apply.
B - Limiting factors are things such as food, mates, and competition with other organisms for resources, which can limit the maximum population. Temperature can be applied here, it is the best option.
C - Climax community is when an area's ecosystem is stable, so the term makes no sense used here.
D - To be honest I have no clue what this is. But making an assumption from the term, the winter being "unusually cold" does not make it a "pattern". So I don't think it's this option. I could be wrong, but I assume this is not the right choice.
What is the greatest threat humans pose to biodiversity?
interspeciation
habitat loss
genetic mutations
invasive species
Answers
Answer: The biggest threat to biodiversity to date has been the way humans have reshaped natural habitats to make way for farmland, or to obtain natural resources, but as climate change worsens it will have a growing impact on ecosystems.
Explanation: hope it helps!
An alcoholic male has developed hepatic cirrhosis. To control the ascites and edema, which should be prescribed? A. Acetazolamide B. Chlorthalidone C. Furosemide D. E. Spironolactone
Answers
Answer:
A- Acetazolamide
Explanation:
Acetazolamide can reduce drowsiness and dizziness within the patient. Its a reliever.
Which plate boundary interaction is shown in the picture?
A. convergent boundary
B. divergent boundary
C. transform boundary
Answers
The plate boundary interaction which is shown in the picture is referred to as transform boundary and is denoted as option C.
What is a Transform boundary?
This refers to a fault zone which is characterized by two plates sliding past each other horizontally in the earth .
On the other hand, Divergent boundaries refers to the plates moving apart while convergent boundaries refers to the plates are colliding with each other as a result of different types of factors such as temperature, pressure etc.
This is therefore the reason why transform boundary was chosen as the most appropriate choice according to the picture given in the question.
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What change is most likely
responsible for the trout decline? *
Answers
Answer:
Rise in temperature.
Explanation:
Increase in temperature is responsible for the decline in the population of trout because trout needs low temperature for better growth and survival. Due to more consumption of fossil fuels in vehicles and industries, more carbondioxide gas is released which causes air pollution. This air pollution increases the temperature of the earth surface known as global warming due to which the cold areas become warm and as a result the trout population decreases.
The eyes of some birds contain cells that detect ultraviolet (UV) light.
UV light is reflected by some fruits and the urine of small mammals.
Explain how birds that detect UV light have evolved from birds that could not detect
UV light
[6 marks
Answers
Birds that detect UV light have favorable characteristics that enable them to survive and reproduce. These characteristics are passed on to their offspring.
According to Darwin's theory of evolution, organisms that are better adapted to their environment live long enough to survive and reproduce and pass on these favorable traits to their offspring.
Since birds depend on these fruits for food and these fruits reflect UV light. A bird that can not detect UV light will find it difficult to obtain food. Hence, birds that have developed the ability to detect UV light will live long enough and reproduce, passing on these favorable characteristics to their offspring. Hence, birds that can detect UV light appears from birds who do not originally detect UV light.
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!!!!!!WILL MARK BRAINLIEST !!!!
2. Below is an image of 2 imaginary organisms. Organism A lived hundreds of years ago while organism B is
alive today. Explain how organism A evolved into organism B, including what environmental pressure (i.e.
predator, habitat, competition, etc) you believe guidede natural selection process that worked on this
species.
0-Organism
A
Organism-B
Answer: Click or tap here to enter text.
Answers
Answer:
The new modification in Organism B is the tail.
Explanation:
This might indicate that the organism has to sprint in order to catch prey or to get away from predators. The organism is most likely not a prey, since it has sharp teeth, making it a carnivore. The tail helps in stabilizing the animal while running. The animal might have new threats that have developed over the years (like humans).
What is one result of acid rain
Answers
Put the following mitosis and cytokinesis images in order
Answers
Mitosis and cytokinesis are both stages of the cell cycle. Mitosis is the division of the nucleus, while cytokinesis is the division of the cytoplasm. According to the image below, the order could be 3, 2, 1, 4, and 5.
Stages of Mitosis
1. Chromosomes are replicated and attached to spindle fibers.
2. The nuclear membrane and nucleolus dissolve.
3. The chromosomes line up in the middle of the cell and are pulled apart to opposite sides of the cell.
4. The two daughter nuclei form, each containing an identical set of replicated chromosomes.
Stages of Cytokinesis
1. A cleavage furrow is formed, dividing the cytoplasm into two daughter cells.
2. The cleavage furrow deepens, eventually forming a cell plate, which separates the cytoplasm.
3. The cytoplasm divides into two daughter cells.
read about cell cycle
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i need help!!!!!!!!!!
Answers
Therefore density here=3g/12mL=0.25g/mL
Which idea is not in the correct position on the chart?
A. Biomass Fuels
B. Natural gas
C. Wind
D. Geothermal energy
*If you cant read the top of the chart it says:
Alternative Energy Sources | Fossil Fuels*
Answers
Answer:
Biomass Fuels, Geothermal energy
How can we prevent our houses and buildings from lightning
Answers
Answer:lightning rod
Explanation:
Normaly there is a lighting rod to the most of the buildings or house so we can place lighting rod to prevent houses and buidlings from lightning
3 types of animal like protest at least 3 types of plant like protest and at least 1 example of fungi like protozoan
Answers
Answer:
Animal-like protists include the flagellates, ciliates, and the sporozoans.
Explanation:
which cell is defective in situation 2? what happens to the hormone concentrations as a result of this defect?
Answers
Answer:
The defective cell is the M cell. due to the stimulation of Hormone A, cell M produces hormone B in large quantities by inhibiting the production of hormone A by cell D
Which statements describe mass or weight measured in newtons
Measured in kilograms
Does not change when gravity changes
Changes when gravity changes
The amount of matter in something
A gravitational pull
Answers
The statement that best describe mass and weight is that there are both measured in kilograms.
What is mass of an object?Mass is a scalar quantity that measures the amount of matter in an object. It is a fundamental property of an object and is determined by the number of particles and their arrangement in the object.
Mass is often used interchangeably with weight, but they are different concepts. Weight is the force that an object experiences due to gravity, and is proportional to its mass and the local acceleration due to gravity. Mass is a constant, whereas weight can vary depending on the strength of the gravitational field.
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Write out a summary that will go with your model to explain what it is showing. Remember that this should be scientifically accurate, but it's an explanation for elementary school students. Your summary should include:
Position and motion of the solar system (You did this in the Module 2 Check Your Learning activity! Modify your formal explanation for a younger audience.)
How the universe was formed through the Big Bang Theory (You did this in the Module 1 Check Your Learning activity! Modify your formal explanation for a younger audience.)
Answers
The planets orbit the Sun in the same plane and the Big Bang Theory states an explosion of space, marked the beginning of our cosmos.
What is Big Bang Theory?The galactic plane and the planetary orbital plane form a roughly 60° angle as the Solar System travels through the galaxy.
As it circles around the Milky Way, the Sun appears to move up and down and in and out of the galaxy.
The Big Bang, an explosion of space, marked the beginning of our cosmos. Space expanded, the cosmos cooled, and the basic elements emerged from a very high density and temperature starting point.
The first stars and galaxies were created as a result of the slow gathering of stuff by gravity.
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Mini Case
16. Marc, a first-year college student, starts out on a
backpacking trip in southern New Mexico. It is September,
so the daytime temperatures are quite high, and the
desert air is very dry. He has a portable water filter to treat
river and stream water that he finds on his planned route
through the Gila wilderness. On the second day of his
week-long trip, Marc's water filter breaks. He is afraid of
contracting giardiasis (a protozoal disease spread through
water contaminated by animal feces), so he drinks only the
small amount of water that he can boil on his camp stove
at night. By the fifth night, Marc is feeling weak and thirsty,
and starts to hike out. He makes it to a local highway
and collapses. A passing motorist calls 911 for an
ambulance.
Apply Your Knowledge
a. Given that Marc has sweated a lot, and that sweating
causes the loss of more water than solutes, what has
happened to the solute concentration of Marc's blood
as a result of his dehydration?
b. From the solute concentration of Marc's blood, what
is likely to be happening to his body cells that are in
contact with his blood and related fluids (e.g., lymph
and cerebral spinal fluid)?
c. The paramedics have three saline solutions available.
The first is a "normal" isotonic saline solution (0.9%
NaCl), the second is a hypertonic saline solution
(3% NaCl), and the third is a "half normal" saline
solution (0.45% NaCl). Which one would you use to
treat Marc? Why?
Answers
a) Marc's blood now has a higher solute concentration than usual since he has lost more water than solutes. b) Marc's blood has a greater than usual solute concentration, which means that any cells in touch with it are probably osmotically losing water and starting to shrink.
c) Marc has to have his blood volume increased and his present solute concentration lowered (back to a normal concentration). Therefore, the "half normal" saline is most likely your best option. It will increase volume, but when mixed with his concentrated blood, its solute concentration will revert to normal because it is less concentrated than usual.
The amount of a solute per unit volume of a solution, or the concentration of a chemical species in a solution, is expressed as a solute's molar concentration. The most common unit used in chemistry to express molarity is the number of moles per liter, represented by the unit sign mol/L or mol/dm3 in SI units.
The thing that dissolves in a solution is referred to as a solute. In fluid solutions, the solvent is more prevalent than the solute. A chemical solution's concentration is a measurement of the solute content in relation to the solvent content.
In comparison to the solute concentration inside cells, a hypotonic fluid has a lower solute concentration. A red blood cell will experience a net inflow of free water when it is placed in a hypotonic solution.
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What is the difference between white and red blood cells?
A. Red blood cells hold oxygen; white blood cells hold carbon
dioxide.
B. Red blood cells carry oxygen; white blood cells fight disease.
C. Red blood cells are in arteries; white blood cells are in veins.
D. Red blood cells are pulmonary; white blood cells are circulatory.
Answers
Answer:
Red blood cells carry oxygen; white blood cells fight disease.
Explanation:
Confirmed, just did it.
Red blood cells carry oxygen; white blood cells fight disease. Therefore, option "B" is correct.
What are red blood and white blood cells?The blood cells are produced in the bone marrow of the bones and are present in the blood. A protein found in red blood cells that transports oxygen from the lungs to every cell in the body is hemoglobin.
The immune system of the body is constituted of white blood cells. They empower the body's defense against disease and infection. Granulocytes, monocytes, and lymphocytes (T and B cells) are examples of white blood cells.
Red platelets or RBCs convey oxygen to the tissues in various pieces of the body. By producing antibodies, white blood cells, or WBC, strengthen the body's defenses. The complete blood test is used to detect disease.
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Sea anemones are predatory invertebrates with stinging tentacles that can paralyze many sea animals. The clownfish is immune to the sting of the sea anemone and actually lives among its tentacles. The relationship is mutually beneficial—the clownfish often lures meat-eating animals over to the anemone, and the anemone benefits from the meal. The clownfish often gets to eat leftovers from the anemone’s meal.
When the clown fish is ready to lay eggs, it lays them near a sea anemone. How’s this a reproductive strategy?
Answers
The clownfish's reproductive strategy of laying eggs near a sea anemone is a form of protection and survival for its offspring.
By laying their eggs in close proximity to the sea anemone, the clownfish provide their eggs with a safe place to develop. The sea anemone's tentacles are a powerful defense mechanism that can fend off potential predators that may try to harm or eat the eggs.
In addition to protection, the clownfish also benefit from the relationship with the sea anemone during the reproductive process. The anemone provides a clean surface on which the eggs can be attached and also helps to oxygenate the surrounding water, which is important for the development of the eggs.
The anemone's tentacles also help to keep the eggs free of harmful parasites and fungi. Overall, the clownfish's reproductive strategy of laying eggs near a sea anemone is a mutually beneficial relationship that helps to ensure the survival of the clownfish offspring.
The protection and benefits provided by the sea anemone help to increase the chances of the eggs hatching successfully, resulting in a higher survival rate for the next generation of clownfish.
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Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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A student is asked to give a presentation on how a certain drug alleviates pain in dogs and cats. He is required to present
background information on how the drug works and if he thinks it would be safe for other animals.
What would be the best source for his research about the mechanism of the drug?
a peer-reviewed research article in a scientific journal
O a pharmacology textbook published in 1980 by an expert in the field
O a recorded presentation about the drug from a scientific conference
O a news article from a high-quality newspaper
Answers
The best source for his research about the mechanism of the drug would be : A peer-reviewed research article in a scientific journal ( A )
A peer-reviewed research article would be a best source for his research because peer-reviewed articles are written and reviewed by colleagues in the same scientific field of study.
An article written by an author about how a drug will alleviate pain in dogs and cats and reviewed by his peers will contain detailed information on the mechanism of such drug, therefore this article will be very informative and helpful to the student.
Hence we can conclude that , The best source for his research about the mechanism of the drug would be A peer-reviewed research article in a scientific journal.
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I need help putting these in order!
Answers
Based on the information provided, the order in which the events described took place is E, A, B, C, F, D.
How did Earth and life formation occur?In this sequence of events, Earth was formed first, this occurred as Earth cold down and therefore it became solid. Despite this, the existing atmosphere was different than the one we have now as it was rich in carbon dioxide, this led to oceans that were rich in the same component.
Due to this, the first life forms relied on carbon dioxide and release oxygen, which later led to an increase in the oxygen levels and different life forms.
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Which of the following was most likely responsible for the fact that organic molecules no longer spontaneously form on Earth?
The amount of UV radiation increased.
The amount of oxygen in the atmosphere increased.
Water accumulated in the oceans.
Earth's surface temperature warmed.
Answers
Answer: The amount of oxygen in the atmosphere increased.
An object is moving east, and its velocity changes from 65 m/s to 25 m/s in 10 seconds. Which describes the acceleration?
8
4 m/s2 in negative acceleration
4 m/s2 in positive acceleration
9 m/s2 in positive acceleration
9 m/s in negative acceleration
Save and Exit
Next
SED
Mark this and return
Answers
Answer:
4 m/s2 in negative acceleration
Explanation:
From the question.
Acceleration= change in velocity ÷ time.
V1-V0÷time.
That is final velocity minus initial velocity divided by time.
25-65÷10.
-40/10=4m/s.
The acceleration is -4m/s.
The answer is 4m/s negative acceleration.
Answer:
A
Explanation:
Got it right when submitted
Type the correct answer in the box. Spell all words correctly.
What is a close relationship between two organisms that live together called?
The close relationship between two organisms that live together is called
Reset
Next
Answers
Answer:
symbiosis.
Explanation:
The term that you are referring to is symbiosis. (a symbiotic relationship)
Symbiosis is a proximate and often long-term interaction between two or more different biological species.