Why is gas exchange (think oxygen and carbon dioxide) necessary?

Answers

Answer 1

Answer:

Gas exchange allows the body to replenish the oxygen and eliminate the carbon dioxide.


Related Questions

how does the structure of xylem relate to its function

Answers

Answer:

They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin . Lignin gives strength and support to the plant.

If you do this for meee you get 100 points (its for science and im confused)

Answers

Answer:

A goes on the bottom b goes on top and c goes in the middle

Explanation:

sorry if im not right

Answer:

The name of phase is sublimation for the first one.

The name of phase is deposition for the second one.

The name of phase is melting for the last one.

Explanation:

hope this helped!

Carbon is found in all living organisms. the constant flow of carbon on earth through organisms and the air is known as the carbon cycle. plants absorb carbon from the atmosphere in the form of carbon dioxide. they use it for respiration and photosynthesis animals consume plants, transferring carbon along the food chain. plants and animals respire and release carbon into air. when the animals and plants die, they are eaten by carbon enters back into the atmosphere in the form of

Answers

According to the research, most of the carbon quickly enters back into the atmosphere in the form of carbon dioxide.

What is the carbon cycle?

It is the process that describes the flow of carbon (in the form, for example, of carbon dioxide) in the atmosphere, the ocean, the terrestrial biosphere.

Thus, the CO2 in the atmosphere passes through photosynthesis to the plants, also the cycles of respiration and microbial decomposition intervene, which release new CO2 in gaseous form into the atmosphere.

Therefore, we can conclude that according to the research, most of the carbon quickly enters back into the atmosphere in the form of carbon dioxide.

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Answer:Decomposers an carbon dioxide

Explanation:

3. Explain why the frequency of the tusklessness trait is increasing in the African elephant population.
Justify your answer using the principles of natural selection.
Claim : The frequency of tusklessness is increasing in the African elephant population. Changes like this
overtime is called Evolution and is occurring by
It is a process that has these principles:
a.

Answers

The frequency of tusklessness is increasing in the African elephant population because evolition which occurs by means of natural selection selects elephants that are tuskless for survival.

What is natural selection?

Natural selection is a process by which organisms with featuresthat make them best suited for survival in their environment are selected for survival.

These traits are present in these organisms as a result of evolution.

The traits that are naturally selected enhances the ability of the organism to survive.

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jesus gave his disciples a miraculous catch of fish this many times .
who many times was it?
1
2
3
12

Answers

Answer:

3

Explanation:

this is how many times he have his disciples a miraculous catch of fish

Answer:

2

Explanation:

They took place years apart, with second occurrence being 153 fish I believe.

HURRY
Which factors contribute to a country's natural population growth? Select three responses.
O immigration rate
O migration rate
Obirth rate
Odeath rate
Ofertility rate

Answers

Answer:

Birth rate, death rate, and fertility rate.

What is the possible plan of action? (About landslide reasearch)

Answers

Go out and do your thing.

Vector contact involves contact with __________. a. an infected surface b. contaminated water c. an infected organism d. a carrier organism please select the best answer from the choices provided. a b c d

Answers

Vector contact involves contact with an infected organism. Details about vectors can be found below.

What is a vector?

A vector is a carrier of a disease-causing agent or pathogen.

This means that a vector must come in contact with an infected organism to carry the disease-causing organism.

An example is the case of mosquitoes, which carries plasmodium pathogen that causes malaria when it feeds on an infected organism.

Therefore, vector contact involves contact with an infected organism.

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PLLSSS-100 POINTS-PLSSSS

How and why do water and carbon dioxide function as raw materials during photosynthesis?

Review how sunlight provides the energy to carry out reactions to release oxygen and produce energy-rich carbohydrates.

Answers

Answer:

plants take in carbon dioxide (CO2) and water (H2O) from the air and soil.

Explanation:

During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

(if this isnt what your asking just let me know and i do it again)

Explanation:

photosynthesis is the process in which plant make their own food with the help of sunlight,water and carbon dioxide. water and carbon dioxide are raw materials in photosynthesis because they help to prepare their food.During photosynthesis, plants take in carbon dioxideand water from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.

sunlight, water and carbon dioxide helps to produce energy storing carbohydrates.The energy from sunlight drives the reaction of carbon dioxide and water molecules to produce sugar and oxygen, as seen in the chemical equation for photosynthesis.

carbon dioxide + water➡️sugar + oxygen

6co2 + 6 h2o➡️c6h12o6 +6o2

In the analogy of a
cell as a city the
Golgi apparatus is
compared to the...
A. schoolroom.
B. post office.
C. law office.

Answers

Answer:

option B. post office is the answer


3. Once bacteria are in your cell, what biological process begins to take place?

Answers

Answer:

Most bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two (replicates).

Explanation:

Between 1970 and 1985, why did cars become more energy efficient?

Answers

Answer:

Cars became more energy efficient because of the oil crisis in 1973.

Explanation:

It forced manufacturers to focus on fuel economy, which made gallon numbers rise in the late 1970s and early 1980s.

Hope this helps: )

total saturation of protein transporters for a given solute in the renal tubules would result in __________.

Answers

Answer:

absence of that solute from the urine

Explanation:

A protein transporter is involved in the transportation of the ions and the molecules. If a membrane protein transporter gets totally saturated in the renal tubules, then that solute will appear in the urine.

What are transport proteins?

Transport proteins are the transporters that move the molecules, ions, and macromolecules in and out of the cell. They carry the molecules and substances across the biological membrane and allow their diffusion.

If a transport protein saturates a solute totally in the renal tubules, then that solute will get secreted in the urine as they are easily soluble in the water and the fluid of the excretion system.

Therefore, the solute will get excreted in the urine.

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Organs of the lymphatic system include lymph nodes, the thymus, and the spleen. These organs are also part of what other body system?
A. the immune system
B. the circulatory system
C. the digestive system
D. the endocrine system

Answers

The organs of the lymphatic system such as lymph nodes, the thymus, and the spleen are also part of the immune system. So, the correct option is A.

What do you mean by the Lymphatic system?

The lymphatic system may be defined as a complex network of vessels, nodes, and tissues that synthesizes white blood cells to fight against infections and diseases.

Spleen and Lymph nodes are categorized under secondary lymphoid organ of the immune system, while the thymus is categorized under the primary lymphoid organ of the immune system.

Therefore, the correct option for this question is A.

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When stressed by a tectonic force, rock stores elastic energy that causes elastic deformation, or ____ to build.

A. compression
B. fractures
C. vibrations
D. strain

Answers

D. strain

would be thhe anwer

Answer:

D

Explanation:

They strain simply because these massive rocks are made up of obsidian mostly which is nearly impossible to break!

What causes the strain --

Elastic deformation is the dominant form of deformation at shallow depths in the crust and lithosphere because both the temperature and pressure are low.

the
If you travel inland from the shores of the present
Lake Michigan, which was once much larger than it
today, you would travel through the following ar
1.
the present sandy beach
2.
grasses
3.
a cottonwood forest
4.
a pine forest
5.
an oak forest
6. a beech-maple forest (where the origina
shoreline was located)

Answers

If you happen to travel inland from the  shores of the present Lake Michigan, you would travel through a pine forest.

What is Lake Michigan?

The Lake Michigan is one of the largest lakes in the United States. It used to be a very large lakes in the United States.

If you happen to travel inland from the  shores of the present Lake Michigan, you would travel through a pine forest.

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the brain is an organ in the nervous system.

which of the following is true about the brain?

choose 1 answer:

(A) the brain is made up of a single type of tissue.

(B) the brain is made up of different tissues that carry out the same function.

(C) the brain is made up of tissues with different functions that work together.​

Answers

Answer:

(C) the brain is made up of tissues with different functions that work together.

What is the name of the Island chain that Darwin explored off the coast of South America?

Answers

the Galapagos

While visiting the Galapagos in 1835, British naturalist Charles Darwin observed local plants and animals.

Answer:

The Galapigoes

Explanation:

Charles Went there in the 19th century to watch and understand how the plants and animals live there.

2. Sends blood to the lung.

Which chamber?

Answers

Answer:

right ventricle

Explanation:

Describe how changes(mutations) to genes can result in changes to proteins.

Answers

Answer:

mutations can change a protein due to the mistake in the copied gene sequences

what organism in this diagram is a secondary consumer

Answers

Answer:

upload the picture or tell me which order the animals and what they are in and i will be able to anwser within the comment's

Explanation:

The diagram won’t show up for me I’m sorry

Explain the DNA Replication diagram above with all the great terms from this chapter. This is a BIG ANSWER.​

Answers

DNA replication or duplication is the process of making copies of DNA by the cell. It involves a series of steps and various enzymes required for the completion of the process.

What is the process of DNA replication?

DNA replication has several steps along with some proteins called replication enzymes as well as RNA.

The process of replication is as follows:

Replication fork: It is made by unzipping DNA into two strands. It is done by break of the purine and pyrimidine bond accomplished by an enzyme called DNA helicase.

Primer binding: After this unzipping, a short piece of RNA which is called as a primer binds to the 3' end of the DNA strand. The primer bound is the starting point for replication. Primers are generated by the enzyme referred to as DNA primase.

Elongation: DNA polymerase aids in the elongation process in DNA replication. As the replication moves in the 5' to 3' direction on the leading strand, the newly formed strand will be continuous. But in the case of the lagging strand replication starts by binding with multiple primers which involve DNA polymerase and then adds pieces of DNA, called Okazaki fragments, to the strand between primers.

Termination: On the formation of both the strands, Exonuclease removes all RNA primers followed by proofreading and then the adhesion of the Okazaki fragments by enzyme DNA ligase.

Thus, these were the steps involved in the process of DNA replication.

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What are the best ways to control invasive species including plants, pests and pathogens?​

Answers

Answer:

Prevention is the most cost-effective and safest method of controlling invasive species. Detecting invasive species early and responding quickly is far more effective than trying to control a vast infestation. Invasive species may be subject to control and management efforts if eradication is not achievable.

Detection and prevention

First thing to do is use rednook of United Nations and find out the endangered speciesIf we can find them early then that's great Then we have to try our best by spreading awareness to protect those species .

The relationship between a carnivore and an herbivore can be stated as
A) parasite and host
B) Predtor and prey
C) Prey and predator
D) Scavenger and parasite

Answers

C) Predator and Prey

1. List four ways in which the body uses energy.

Answers

Answer: Energy fuels your body's internal functions, repairs, builds and maintains cells and body tissues, and supports the external activities that enable you to interact with the physical world. Water, your body's most important nutrient, helps facilitate the chemical reactions that produce energy from food.

Explanation:

chromosomes from blood drawn from a five-day-old baby appears to have slight facial deformities and has been diagnosed with an atrial heart defect

Answers

Answer:

A congenital heart defect (CHD) is a heart problem that a baby has at birth. It is caused by abnormal formation of the heart during growth in the womb. In most cases, when a baby is born with a congenital heart defect, there is no known reason for it. Some types of congenital heart defects can be linked to an abnormality in the number of a baby’s chromosomes. They may be linked to single gene defects. Or they may be linked to environmental factors. In most cases, there is no clear cause that can be found for the heart defect. They are often thought to be caused by many factors. The factors are usually both genes and the environment. This means that genes from both parents plus unknown environmental factors lead to the problem.

Explanation:

i think that the person who answered above me was right


Which of the following best describes the gradual return of plants and other species
to an area after an ecological disturbance?
Assimilation
Percolation
O Biodiversity
Succession

Answers

Succession.

- Primary succession starts from square one, usually with bacteria being the first organisms to colonize a barren rock surface (for example, regrowth after a volcanic eruption)

- Secondary succession redevelops an area after a more minor disturbance, with plants often able to return sooner (for example, a forest regrowing after a forest fire)

Answer:

D. Succession.

- Primary succession starts from square one, usually with bacteria being the first organisms to colonize a barren rock surface (for example, regrowth after a volcanic eruption)

- Secondary succession redevelops an area after a more minor disturbance, with plants often able to return sooner (for example, a forest regrowing after a forest fire)

Explanation:

20 Points

A blue whale can eat over 3,500 kg of krill in one day. Whales are warm blooded, which means that they use some of the energy from the food they eat to maintain a consistent body temperature. What kind of energy change does this represent?

A.

electrical energy changing to mechanical energy

B.

chemical energy changing to mechanical energy

C.

electrical energy changing to thermal energy

D.

chemical energy changing to thermal energy

Answers

Answer:

D

Explanation:

It can't be electrical because its a huge animal

A chloroplast produces sugar in its?

Answers

it’s produced in the stroma part of the cholorplast, the sugar is called glucose as well.

The table below shows the characteristics of four pathogens.
Pathogen
Genetic material Nucleus?
Outer Covering
Can replicate on its own?
1
DNA
No
Cell wall
Yes
2
DNA
Yes
Cell membrane
Yes
3
DNA
No
Protein capsule No
4
DNA
Yes
Cell wall
Yes
Which pathogen is most likely a virus?
Choose 1 answer:
Pathogen 1
Pathogen 2
Pathogen 3
Pathogen 4

Answers

Pathogen 3 will most likely be a virus with the features seen in the table.

What is a Pathogen?

This is defined as disease causing microorganism and examples include bacteria, virus etc.

Virus doesn't replicate on its own but only when in the living cells of other organisms and has a protein capsid but lacks nucleus.

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Answer: CORRECT (SELECTED)

Pathogen 3

Explanation:

Pathogen 3 has a protein capsule covering and is unable to reproduce on its own

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