Why is the countercurrent system of flow important for fishes?

Answers

Answer 1

Question: Why is the countercurrent system of flow important for fishes?

Explanation and answer: Fishes use a design called 'countercurrent oxygen exchange' to maximize the amount of oxygen that their blood can pick up. They achieve this by maximizing the amount of time their blood is exposed to water that has a higher oxygen level, even as the blood takes on more oxygen.

             I hope this helped you a lot with your schoolwork.

                          I hope you have a wonderful week!


Related Questions

How can you determine the cell cycle stage of a plant cell?.

Answers

Answer:

based on measurement of cellular DNA content.

Explanation:

How did both the redi and the pasteur experiment prove there was no such thing as spontaneous generation

Answers

Answer:

These experiments proved that there was no spontaneous generation, since the boiled broth if never reexposed to air, remained sterile.

Photosynthesis is vital for maintaining levels of atmospheric oxygen. Please select the best answer from the choices provided T F.

Answers

Photosynthesis is able to keep the plant alive letting it make more oxygen. Answer is True

Photosynthesis is a key determining process to regulate the level of atmospheric oxygen. This statement is true.

What do you mean by Photosynthesis?

Photosynthesis may be defined as a process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

Without the process of photosynthesis, the evolution of oxygen can not be imagined. Photosynthesis takes carbon dioxide from the atmosphere, and in respect of this oxygen is liberated in our surroundings.

Therefore, Photosynthesis is a key determining process to regulate the level of atmospheric oxygen.

To learn more about Photosynthesis, refer to the link:

https://brainly.com/question/19160081

The region of the stomach that empties into the duodenum is the.

Answers

Answer:

The pylorus

Explanation:

is the part of the stomach that connects to the small intestine. This region includes the pyloric sphincter, which is a thick ring of muscle that acts as a valve to control the emptying of stomach contents (chyme) into the duodenum (first part of the small intestine).

Answer:

The pylorus is the part of the stomach that connects to the small intestine. This region includes the pyloric sphincter, which is a thick ring of muscle that acts as a valve to control the emptying of stomach contents (chyme) into the duodenum (first part of the small intestine).

Explanation:

Hope i've helped you!!!

Question 23 (1 point)
Which below is NOT part of the lymphatic system?
a
spleen
b
bone marrow
C
lymph nodes
Od
tonsils

Answers

D tonsils
All are present except the tonsils

a --------- ----------- factor impacts large populations and are often caused by overpopulation for example completion for food water shelter

Answers

Answer:

One of the answers could be emigration.

Can someone please help me? :(

Answers

Answer:

B i think or C

Explanation:

Because in the way I am thinking it's B, "School cooks should be educated on allergies to peanuts." It makes the most sense

Answer:  b

Explanation:

it can't be a since source 2 says "few people recognize..." which contradicts "students know what to do..."

it can't be c because there is no source comparing peanut allergies now vs. past.

it can't be d because you cannot infer this from the given data.

leaving us with b because since a majority of peanut allergies happen at school and not many know how to deal with an event with a peanut allergy, then teaching cooks about peanut allergies will help students in the case of an allergic reaction in school.

hope this helped! ♡

What kind of compounds are formed by carbon​

Answers

Answer:

Carbides: Carbides are binary compounds formed by carbon and another element with a lower electronegativity. Examples include Al 4 C 3, CaC 2, SiC, TiC, WC.

Carbon Halides: Carbon halides consist of carbon bonded to a halogen. Examples include carbon tetrachloride (CCl 4) and carbon tetraiodide (CI 4 ).

Carboranes: Carboranes are molecular clusters that contain both carbon and boron atoms. An example is H 2 C 2 B 10 H 10.

Explanation:

Answer:

Carbon Forms Covalent Bonds

This is because carbon typically bonds with elements which have a similar electronegativity. Examples of covalent bonds formed by carbon include carbon-carbon, Examples of compounds containing these bonds include methane, water, and carbon dioxide.

Explanation:

Hope This helps

Have a great day

~Zero~

The ______ carries urine from the kidney to the bladder, and the ______ carries urine from the bladder to the outside of the body.

Answers

The Ureter Carries urine from the kidney to the bladder, and the Urethra carries the urine to the outside

The urinary system

The ureter carries urine from the kidney as a waste product obtained from the consumption of food and liquid substance to the bladder, which acts as a temporary storage of urine. When the bladder storage is saturated the urine is released to the outside of the body through the urethra.

Hence we can conclude that The Ureter  Carries urine from the kidney to the bladder, and the Urethra takes the urine outside the body.

Learn more about the urinary system : https://brainly.com/question/11859334

During which phase of the cell cycle does the cytoplasm of a cell divide to form two daughter cells?.

Answers

Answer:

Telophase or in other words the final phase of mitosis

Explanation:

Will the entire starch molecule be able to enter the cells of the digestive tract?

Answers

Answer:
To be put simply no,

Hope this helps :)

Particularly important dietary carbohydrates include starch and disaccharides such as lactose and sucrose. None of these molecules can be absorbed for the simple reason that they cannot cross cell membranes unaided and, unlike the situation for monosaccharides, there are no transporters to carry them across.

2. Why are the authors looking at differences in functional groups and species richness for plant biomass accumulation?

Answers

They want to understand they both affect diversity and how they interact with other global chance factors.

What is Diversity?

This is defined as a measure of the range and distribution of certain features within a given population.

Differences in functional groups and species richness for plant biomass accumulation was looked into to establish how they affect diversity and interaction with other global chance factors.

Read more about Diversity here https://brainly.com/question/1253532

A functional group is physiological, morphological, and ecological species identity. Species richness is the number of species in a community.  The functional group is a set of species that share similar characteristics within a community.

What is plant biomass?

Plant biomass refers to the weight of living plant material above and below a unit of ground surface area at a given point in that time.

Biomass is a plant based material that is used as fuel to produce heat.

The relationship between biomass and species richness in temperate vegetation is given in detail by hump-back response model.

Thus, number of species in a community is called species richness and the functional group is a set of species that share similar characteristics within a community.

For more information regarding plant biomass, visit:

https://brainly.com/question/17351215

#SPJ3

the food you eat supplies you with the ____ needed for you rbody to build new cells and r enew itself

Answers

Nutrients
Hope it helps

Nuclear-generated power plants are heavily subsidized. Do you think the market price of these plants should include the costs of the nuclear fuel cycle? Explain.



Answers

The market price of these plants should not include the costs of the nuclear fuel cycle.

What is a nuclear power plant?

A nuclear power plant is used in the generation of nucler power and offers a very cheap and relevant means of generating power though it is expensive to build. It also serves a lot of people as a veritable source of electricity.

The nuclear fuel cycle is cheap while the building of the palnt itself is expensive. Hence, the market price of these plants should not include the costs of the nuclear fuel cycle.

Learn more about nuclear fuel: https://brainly.com/question/1788628?

Among the invertebrate phyla, phylum arthropoda is unique in possessing members that have.

Answers

Answer:

Wings

Explanation:

The most unique feature among phylum Arthropoda is that some of its members have wings. No other invertebrate has winged species!

why did mammals evolved so quickly after the extinction of the dinosaurs

Answers

Because they started breeding more started coming and there was no big threats

How does natural selection enable species to changes their body shape, appearance, and/or size over time? *
A) Individuals that are better adapted to their environment survive and reproduce.
B) Overproduction provides food for stronger members of the species.
C) Environmental changes kill weaker members of the species.

Answers

Answer:

A

Selective pressures( Predators, less food etc. ) will cause the less fit variation of a species to decrease in population, causing them not to be able to reproduce. The more fit variation would be able to reproduce more so that over time, the individuals in the species will have the features of the more fit variation.

How could Flor explain why all three species share some body structures and have some differences? Why do only house geckos and Pacific gulls have two temporal holes in their skulls?

Answers

The similarities in the structure of the three species is due to their sharing a common ancestor while the differences is due to adaptation.

What is divergent evolution?

Divergent evolution is evolution where individuals who shared a common ancient ancestor process to have differing structures due to differences in their habitats.

All three species that Flor observed having similar structures is because they had a common ancestor.

The species had differences because they evolved to adapt to their different environments.

Wall geckos and Pacific gulls have temporal holes in their skulls as adaptations to their habitat.

Learn more about adaptations at: https://brainly.com/question/29594

i need hel at science quick ASAP ​

Answers

Answers:

D) According to the graph, obesity and diabetes are intertwined, which could be why obesity and diabetes are linked.

E) Diabetes had the greatest rise in prevalence in 1997 until 2000, with prevalence percentages between about 76% to 78%.

Explanation: Explanation for these answers are below:

D) Looking at the graph, obesity and diabetes had similar prevalences in 1997 and 1998, and started to part ways a little in 1999.  In fact, even without the graph, scientists have known for a long time that people who have obesity also have diabetes.  This graph supports that claim because of how closely linked diabetes and obesity are and how similar the prevalence percentages are.

E) Diabetes had the greatest rise in 1997 to 2000, which had a 78% prevalence by 2000.  Obesity had very similar prevalence percentages from 75.5% to 77% in 1997 to 2000.

Which is hotter spica or Vega?

Answers

Answer:huh I dunno what that is

Explanation:

If a population is already well-adapted to its environment, will most mutations be helpful or harmful? Explain.

Answers

Most mutations will be helpful if a population is already well-adapted to its environment.

What is Mutation?

This is defined as a change in the DNA sequence of organisms. These changes occur as a result of the ever changing environmental conditions.

When there is a high adaptability by the population, then it infers that the mutation is a helpful one.

Read more about Mutation here https://brainly.com/question/17031191

how can you demonstrate that plants prepare their own food in their leaves right with an experiment​

Answers

Answer:

the process through which plants prepare there food is called photosynthesis, they absorb carbohydrates and release oxygen during the night.

A/an ____________________ is a structure in which male gametes develop.

Answers

An antheridium is a structure in which male gametes develop

A student wants to determine the effect of soil type on plant growth. He set up 3 pots as shown below. How could this experiment be improved?

A - There is nothing wrong with this experiment.

B - The three pots should have different amounts of water

C - All three pots should have the same kind of seed, the same amount of light, and the same amount of water.

D - All three pots should have the same kind of soil.

Answers

The answer to how could this experiment be improved is C.

Answer:

C is correct

Explanation:

took test (k-12 student)

The carbon cycle refers to:
A. the mechanism by which carbon dioxide causes global warming.
B. the frequency of light energy that affects the rotational energy of carbon dioxide.
C. the oxidation of glucose to form carbon dioxide and water.
D. the movement of carbon through living organisms, the atmosphere, the sea, and the earth.

Answers

d. THE MOVEMENT OF CARBON THROUGH ORGANISMS AND THE ENVIRONMENT

Answer:

the movement of carbon through living organisms, the atmosphere, the sea, and the earth.

Explanation:

The carbon cycle is nature's way of reusing carbon atoms which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over & over again.

Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, the atmosphere, and in living organisms.

Use the drop-down menus to answer the questions about binary fission. binary fission is a form of reproduction. binary fission results in cells that are .

Answers

Binary fission is a form of agamous reproduction. The cells produce by binary fission are two, and the cells that are produced are identical.

What is binary fission?

Binary fission is the division of the body into two identical bodies.

Binary fission is an agamous reproduction, in which the animals divide the cells into two cells and the second cell is called the daughter cell.

The single-celled animal reproduces by binary fission. Examples are hydra, bacteria, etc.

Thus, the correct options are 1. agamous reproduction, 2. Two, and 3. Identical cells.

Learn more about binary fission

https://brainly.com/question/82412

Just did the assignment

Explanation:

Expected frequency of CC genotype

Answers

0.01 is the expected frequency

Answer:

0.18

Explanation:

What can influence the population growth of organisms?

Answers

Answer:

Population growth rate is affected by birth rates, death rates, immigration, and emigration. If a population is given unlimited amounts of food, moisture, and oxygen, and other environmental factors, it will show exponential growth.

Explanation:

:)

pls help ill give brainliest and 5 starrs

Answers

It would be the pacific plate.

To the left of the North American plate and South American, is the pacific plate which shares its border with both plates.

You had chosen the African plate it appears, however it only shares a border with the South American plate, not the North American plate.

Hope that helps!

What is the difference between monocot and dicot cotyloden

and


What is rhe relationship between monocot seed and dicot seed​

Answers

Answer: The names of these groups are derived from the number of cotyledons or seed leaves that the embryonic seedling has within its seed. A monocot, which is an abbreviation for monocotyledon, will have only one cotyledon, and a dicot, or dicotyledon, will have two cotyledons.

Explanation:

Other Questions
Blake went shopping for a new pair of pants because of a sale. The store was offering a 10% discount. If the price on the tag was $40, what would be the price after the discount but before tax, to the nearest dollar and cent?Please don't send a link! What is question c in the question? PLS HELP OMG I CANT FIND ITGiven a graph for the transformation of f(x) in the format g(x) = f(x) + k, determine the k value.Fix)X0-910k= -3k = 3k = 5k = 8graph below pls help 100 points i will give brainlist Examine the graph below.If the gross primary productivity of a salt marsh is 13,000 gC/m2/year, how much productivity is lost to cellular respiration? 1,750 gC/m2/year 11,250 gC/m2/year 13,000 gC/m2/year 14750 gC/m2/year Find the value of x.? Read this excerpt from Abraham Lincoln's Second Inaugural Address, delivered on April 10, 1865.With malice toward none; with charity for all; with firmness in the right, as God gives us to see the right, let us strive on to finish the work we are in; to bind up the nation's wounds; to care for him who shall have borne the battle, and for his widow, and his orphan -- to do all which may achieve and cherish a just, and a lasting peace, among ourselves, and with all nations.Which sentence correctly uses Lincoln's ideas and avoids plagiarism?He insisted that the defeated Confederate states needed to be treated with "malice" and no charity. (Lincoln)He encouraged Americans to "strive on and finish what they started" to win the Civil War (Lincoln).He wanted people to act with firmness in the right, meaning confidence and faith in their own moral compass. (Lincoln)He urged all Americans to act "with malice toward none" and "with charity for all" once the Civil War ended (Lincoln). Please I really need help!? NOW!! Will give brainest!! PLEASE READ THE PICTURELet g be a reflection in the x-axis, followed by a translation 4 units down of f(x). Write a rule for g described by the transformations of the graph of f. Please show work and I will mark Brainliest! You work in the mayors office and you are providing the mayor with a list of talking points for a speech. In your town, 1313 of the residents live in rented dwellings. Of those who live in rented dwellings, 1212 are in families with school-age children. On your list of talking points, what fraction of the residents should you list as living both in rented dwellings and in families with school-age children? LGBTQ Americans, Native Americans, and Hispanics all organized to advocate for their civil rights during the 1960s.What inspired them?A.) books promoting their causesB.) the womens movementC.) the African American civil rights movementD.) new legislation What things should you consider when you visit America? Write any three things. 6-5 additional practice properties of special parallelograms 2. east of the continental divide, water flows where? What is the subject of this sentence? Roger walks three miles daily.a) walksb) three milesc) Roger Please help I am not understanding There is no psychology subject, so I'm asking in this. How does one be appreciated? Let f(x)=3x-4 and g(x)=x^2-5. Find f(g(3)) Deandre Willis is single and owns a hair salon. He has calculated the following assets and liabilities. Find DeAndres net worth.ASSETS- current value of the hair salon: $180,000- current value of car: $12,500- checking account balance: $1,300- combined savings: $18,000- balance in retirement account: $30,000- current value of owned electronics: $20,000LIABILITIES- remaining balance on mortgage: $120,000- remaining balance on personal loan: $4,600- combined credit card debt: $23,000 What were the two goals of the counter-reformation?. Express 9 2/3 out of 100 as a percent .