HELPP
Why is it important that oxygen and carbon dioxide levels be closely regulated in the human body?

A) Both gases are needed for the proper functioning of cell processes
B) Oxygen is needed for cell processes and carbon dioxide is a waste product
C) Both gases are waste products that need to be removed from cells
D) The carbon and oxygen from the gases are needed to build new molecules.

Answers

Answer 1

Answer:

B) Oxygen is needed for cell processes and carbon dioxide is a waste product

Explanation:

Cellular respiration refers to the cellular mechanism by which organisms combine molecular oxygen (O2) with organic compounds obtained from foods, it is a chemical reaction that releases 1-energy (ATP), which is used by cells to carry out its functions, 2-carbon dioxide (CO2) and 3-water (H2O). During the gas exchange, O2 is first transported from the lungs to the blood cells, which subsequently deliver nutrients and O2 to all cells of the body. Simultaneously, CO2 diffuses from cells to tissue capillaries, and then this waste product passes from the bloodstream to the lungs where is eliminated.


Related Questions

why is the product MILO not a suitable for a vegan diet

Answers

MILO and MILO products may not be suitable for a vegan diet due to:

MILO and its products consist mainly of cocoa, malt barley, sugar, and milk powder. Milk powder essentially comes from animals.A vegan is a person whose lifestyles exclude animal products, especially when it comes to diets. A vegan diet primarily consists of plant and plant products.

Hence, the fact that MILO consists of powder milk which is animal-based might make it unsuitable for a vegan diet.

More about vegan diets here: https://brainly.com/question/16160533

Answer:

Explanation:

VEGAN DIET

A Vegan diet refers to diet that contain food from plants such as maize , beans, rice, wheat e.t.c It is mainly plants source and does not contain animal source.

But MILO is also Plant based energy and it contains several vitamins and minerals to help grow a healthy body: It contain Vitamins B2 and B3 which help to support effecient energy release in the body. It contain Essential nutrients like iron, zinc which are very minute

in plant based diets. Milo contain milk which is of animal source.

Therefore, Milo product is not suitable for a vegan diet because it contains milk solids which is derive from animal source.

Produces proteins drop down menus

Answers

Explanation:

Ok, then what do you need explanation for that ??

4. Which is an environmental factor that affects skin color in humans?
A. number of linked genes

B. number of genes inherited
C. amount of food consumed
D. amount of sunlight absorbed

Answers

Answer:

Option D

amount of sunlight absorbed

I think its d its the answer the best
Hope its help for your question

A group of local environmentalists noticed that there were a lot of dead fish in the lake in their neighbourhood. They blamed it on agricultural activity and a substance P that was used to increase crop yield. P caused the rapid growth of aquatic plant Q which decreased the amount of dissolved R in water. What are P, Q and R? What is this process called?

Answers

Answer:

P-Pesticides, Q- Algae, R- Oxygen

Explanation:

Need help someone knows the answer

Answers

Answer:

d. landfill materials

Explanation:


State one reason why soil organisms need air

Answers

Answer:

Soil organisms need air because to release plants nutrition to soil .

they provide nutrients into the air that are healthy

which type of scientific inquiry requires variables and control group

Answers

Answer:The correct answer will be options-a scientific question, a procedure and a conclusion

Explanation:

The scientific investigation is performed to answer, understand and explain the natural events or phenomenon.  The scientific investigation is performed through one of the types of scientific investigation that is descriptive, comparative, and experimental.

The common components of all types of investigation are :

1. Scientific question: the question is asked on the basis of observation made which could be answered.

2. Procedure: the sequential steps are followed to answer and test the scientific question.

3. Conclusion: the main aim of the investigation is the conclusion or inference to the scientific question which is an explanation of the question.

Explanation:

Dhhdbej Dundee Fiji’s

What are the physical characteristics that all specimens have in common

Answers

1. All living organisms are made of cells which perform functions necessary for that organism to survive in its environment
2. All living organisms, weather single called or multicellular, expand energy.
3. We all grow and change through the process of cell division or mitosis.
4. Reproduction (either sexually or asexually) - this allows our species to still exist.
5. Adaptation - we all adapt to an environment other species can’t.

The physical characteristics that all specimens have in common can be presence of cells, as there is no specimen given, let's take animals. A dichotomous key can be used to find the similarity.

What is a specimen?

A specimen can be anything that is displayed regarding the subject. In labs the specimens can be chemicals, animals, plants, any objects, etc.

Specimens are displayed to learn about them, to see the actual version of that animal that can not be seen easily.

Thus, Because no specimen is provided, let's take animals as an example, the presence of cells is a trait that all specimens share. To find the similarity, a dichotomous key might be utilized.

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Which is a benefit of binomial nomenclature?
1.Fewer common names
2.Increased understanding and communication
3.Reduced plant-related poisoning
4.Better understanding of genetics of plants

Answers

2) Increased understanding and communication.

Various cultures and societies shape individual names for a particular organism. However, binomial nomenclature breaks this barrier to allow the scientific community to communicate more efficiently.

For example, the panther or mountain lion can simply become Puma concolor — thus, eliminating confusion. I hope this helps.

Where do convection currents occur atmophere

Answers

Answer:

Convection takes place in the atmosphere, in the oceans, and in Earth's molten subcrustal asthenosphere.

Explanation:

Question 17 of 25
Why do plants produce more carbon dioxide than oxygen during the night?
O A. Respiration produces oxygen during the day and carbon dioxide at
night.
B. Respiration can happen without sunlight, but photosynthesis
cannot.
O C. Respiration can only occur when there is no available sunlight.
O D. Photosynthesis only produces carbon dioxide during the night.
SUBMIT

Answers

Answer:

B

Explanation:

Respiration can happen without sunlight,but photosynthesis cannot.and photosynthesis doesn't take place at night,so less carbon dioxide is used up than it is produced.

I hope this helps

can you suggest me some biology experimental project work topics?​

Answers

Answers:

1. General

2. Reproduction

3. Health

4. Genetic Engineering

5. Technical Experiments on Humans

6. Relationships and Media

7. War

8. Information and Communication Tech

9. Computer Science and Robotics

Fill in the blanks:
In water and ice, the slightly ______ hydrogen atoms in one water molecule are drawn to the slightly _______ oxygen atom in another water molecule.

A. positive, negative

B. negative, positive

C. neutral, positive

D. neutral, negative

Answers

Answer:

option c

Explanation:

The water molecule is a polar substance that has partially charged ions. The hydrogen atom is partially positive, whereas the oxygen atom is partially negative in charge. Thus, option A is correct.

What is polarity?

The polarity of the molecule is defined by the presence of the electrical charges over the elemental atom that results in the formation of the chemical bonds by the electrostatic forces.

Water is an example of a polar molecule that is linked by a covalent bond by sharing the electrons between the oxygen and the hydrogen atom of the molecule.

The hydrogen atom is said to have a partial positive charge and oxygen has a partial negative charge because of the uneven electron density. The electronegative oxygen pulls the hydrogen towards it.

Therefore, option A. hydrogen is partially positive and oxygen is partially negative.

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Approximately how many mutations occur naturally in DNA per 10,000 bases?
A. 2
B. 2000
C. 200
D. 20

Answers

Explanation:

Modern methods indicate that the mutation rate is roughly one to two mutation per 10,000 genes per generation.

In human cells, approximately TWO (2) MUTATIONS occur naturally in DNA per 10,000 bases (Option A is correct).

The mutation rate (u) refers to the occurrence of new mutations in a given nucleotide sequence over time.

In human cells, the mutation rate is approximately 10⁻⁴ per generation.

Therefore, in a DNA sequence that has 10,000 base pairs of length, this value is equal to 2 mutations per generation (u = 2 / 10,000 = 10⁻⁴).  

In conclusion, approximately 2 MUTATIONS occur naturally in DNA per 10,000 bases (Option A is correct).

Learn more in:

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One moth population carries three alleles at a genetic locus: X1, X2and X3. X1is dominant to X2and X3; X1produces red antennae. X2is co-dominant to X3; X2X2produces yellow antennae, X3X3produces white antennae, and X2X3produces light yellow antennae. The phenotypes in a population are as follows: 0.04 white; 0.16 light yellow; 0.16 yellow; 0.64 red.Assuming that this population is in Hardy-Weinberg equilibrium, what is the frequency of the X3allele in this population

Answers

Answer:

The correct answer is - 0.20

Explanation:

According to Hardy Weinberg equation under specific conditions the frequencies of the allele in the gene in a given population remain constant. Thus according to this frequencies of allele and genotype will remain the same through the generation unless there will be no evolutionary influence.

It helps us to predict the genotype frequencies in a large population.  If there are two alleles having allelic frequencies p and q and we know equation of probability and frequencies add to 1

p2+2pq+q2=1

The X3X3 genome produces white antennae. Now Phenotypic frequency of the white antennae is 0.16 or 0.04 in the whole population. Hence the frequency of X3 should be a square root of 0.04 i.e, 0.20.

The human heart weighs how many pounds

Answers

After careful consideration your answer is...

Just about 1 pound

*Hope I helped*

~Alanna~

1 lb (pound)

Explanation:

it is the answer.

what is the average lifespan of a sperm cell​

Answers

[tex]Hello[/tex] [tex]There![/tex]

The answer is...

5 days at least.

Good luck!

[tex]AnimeVines[/tex]

Explanation:

the answer is up to 5 days

What are three blood cells in a human body

Answers

Answer:

red

white

platelets

Explanation:

these are the three blood cells in the human body

red white and platelets

Why do doctors have to check what blood type a person has before receiving a
transfusion?
0
A. Different blood types have different antibodies that will be attacked by someone with
antigens against that blood type.
B. Different blood types have different antigens that will be attacked by someone with
antibodies against that blood type.
C. Your blood type doesn't matter as long as you get the correct amount of blood in a
transfusion.
O
D. They need to have the same blood type because their DNA must be similar enough to
blend or will cause side-effects and possibly be rejected.

Answers

Answer:

A. Different blood types have different antibodies that will be attacked by someone with

antigens against that blood type.

Which of the following is the only one that could cause a theory to change over time?
Group of answer choices

The discovery of new evidence

Exciting new—but untested--hypotheses

A series of new laws passed by the government

A change in public opinion

Answers

Answer:

may be

the discovery of new evidence

Explanation:

Accepted theories may be modified or overturned as new evidence and perspective emerges. Scientists are likely to accept a new or modified theory if it explains everything the old theory did and more. The process of theory change may take time and involve controversy, but eventually the scientific explanation that is more accurate will be accepted.

state te type of cell devision of cross section tips of onion root.​

Answers

mitosis and/or meiosis is the anwser

Carbohydrates info
A. AKA:
B. Composed of:
C. Monomer:
D. Polymer:
E. Functions:

Answers

A: Carbs
B:Carbon, hydrogen and oxygen
C:Monosaccharides
D:Polysaccharides
E: Provides energy to the human body.

A millimeter, a meter, and a kilometer are all measures of distance. What is
another way to classify them?
O A. U.S. customary units
B. Measures of mass
C. Measures of volume
D. Metric units

Answers

Answer:

I think the correct answer is D

Which type of plate boundary would be most likely to lead to above-ground volcanic activity?

A . Subduction
B .divergent
C.collisional
D . Transform

Answers

Answer:

A.Subduction

Explanation:

In a subduction zone, one plate slides beneath another. This leads to friction that can melt the crust and result in volcanic activity

All enzymes which catalyze the chemical reactions of a cell are
a. carbohydrates b. lipids c. long-chain fatty acids d. proteins e. ribonucleic acids no another by differences in​

Answers

Answer:

I think the answer will be protein.

Answer:

the answer is carbohydrates

Science, Geology, Class 8

1. choose the correct answer ( CTCA )
a. what makes the soil fertile?
i. rock particles
ii. humus
iii. sand particles
iv. silt particles​

Answers

Answer:

Humus

Explanation:

Also known as the uppermost layer of soil, that's for making soil more fertile due to its organic content.

Look at the branching tree diagram below.

A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.

Which group of organisms evolved after dogs?

Only cats
Only marsupials
Both cats and marsupials
Both amphibians and reptiles

Answers

Answer:

both cats and marsupials

Answer:   Both Amphibians and Reptiles

Explanation: I took the test and got it, so.....

which of the following solutions has the hghers h ion concentration

Answers

Given concentration of all the acidic solutions is equal. However, H2SO4 being the strongest acid will dissociate completely thus giving highest concentration of H+ ions.

We have all heard about earthquakes or the cyclones that attack the coastal regions. Think of as many different ways as possible in which people's health would be affected by such a disaster if it took place in our neighbourhood. (a) How many of these health -related events would occur long after the actual disaster, but would still be because of the disaster? (b) How can it affect the life of people if in case of a pandemic?

Answers

Answer:

The disease spread to the neighbourhood.

Explanation:

If the disaster such as earthquake and pandemic etc occurs in the neighbourhood so it also affected the health of the people of that region as well as the people that lives in the neighbourhood. In the case of pandemic, the disease spread to the neighboring area and affect the health of people while on the other hand, in earthquake the people of neighbourhood is also affected if the intensity of earthquake is higher.

If you have a measurement of 234.005 k, how many significant figures does it have

Answers

Answer:

It has 6 sig figs

Explanation:

235.005

Every digit is significant.

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