Which of the following is a necessary reactant for cellular respiration to occur? (2 points) a Carbon dioxide b Nitrogen c Oxygen d Water

Answers

Answer 1

Answer:

C.

Explanation:

"Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water."

Answer 2

Answer:

its oxygen!

Explanation:

I just took this test on FLVS and this was a question, I answered with Oxygen and ended up with a 100% test score. Hope I could help!


Related Questions

Collecting research data is the final step in the scientific method.
true or false

Answers

Answer:

False

Explanation:

Edg

Collecting research data is not the final step of the scientific method. Deriving a conclusion from the collected data is the final step. Hence, it is false.

What are the steps in a scientific method?

The scientific method is a process in which data is collected, observed and then a conclusion is derived. The scientific method is a very useful method in technology, computers, and business.

The following steps are involved in the scientific method:

First of all, is asking a questionCollecting dataPerform researchEstablish hypothesisConduct an experiment to test the hypothesisMake an observationAnalyze the resultDerive conclusion.

Deriving a conclusion is the last step in the scientific method, while data collection is the most important step in data collection.

Therefore, collecting research data is not the final step and it is false.

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All organisms have organs and/or body systems. True or False?

Answers

Yes it is very True (:

does the phase of the moon follow an pattern

Answers

Answer:

Yes.

Explanation:

The most obvious patterns of the moon are the phases of the moon, which move in a month-long cycle. Because the moon reflects its light from the sun, only the part of the moon that faces the sun is visible. ... Another quarter way through the cycle, the other half of the moon is visible; this is known as the third quarter.

As PCBs move up the trophic level in food chains, of food web, their concentration increases. What is that called?

Answers

When their concentration increases it is called bio accumulation

state two functions of protein

Answers

Answer:

1- constitute cellular structures.

2- confer elasticity and resistance to órganos and tissues.

Answer: Some proteins help cells keep their shape, others help build muscle tissue, and others help break down chemicals

Explanation: Hope this helps :)

which best defines cohesion

Answers

Answer:

The act or state of sticking together tightly especially

Explanation:

That is one definition.

Hope that helps.

Answer:

Cohesion is sticking of particles of same substance.

Explanation:

For example we say water has cohesion property it means water molecules are cohesive with other water molecules.

Which of the following is not controlled at the individual level?
Response
Genetic code
Growth and development
Evolution

Answers

Answer:

Evolution

Explanation:

Evolution is the change that occurs to a particular species of a population from generation to generation. This change is due to the alteration in their genetic composition, which is inherited over time.

However, this change do not occur at the individual level but rather it occurs to a population i.e. only a POPULATION undergoes evolution process not individual organisms. Note that, the other options including genetic code, growth and development, response are controlled individually by the organism, however, the evolution process takes time and occurs over a population rather than to individuals

What should Smithers conclusion be

Answers

Answer:

sry I'm not getting the answer fr ur question

When many _______ are connected by ________ we call it a polysaccharide.

Answers

When many monosaccharides are connected by glycosidic bonds we call it a polysaccharide.

monosaccharides — glycosidic bonds 。^‿^。

3.
Which level of organization is made of many different organs working together
to perform a BIG job for your body, like digesting your food?

Answers

The answer is organ system

The correct answer is organ system.

Many building blocks are joined together to make a large biological
macromolecule. This chain of sub-units is called a(n)...

A- Isomer
B- Monomer
C- Dimer
D- Polymer

Answers

D-Polymer is the answer

2. Which type of biomolecule (organic compound) is DNA?
A. Lipid
B. Carbohydrate
I
C. Nucleic acid
D. Protein
name

Answers

Answer:

C. Nucleic acids

Explanation:

DNA stands for deoxyribonucleic acids.

They are composed of pentose sugar , nucleic acids

You did an experiment where you want to test if a special kind of fertilizer will actually help your apple tree produce a lot of apples. To do the experiment you went to your local nursery and purchased two of the same kind of apple trees. You planted both trees in your sunny backyard , gave both of them the same amount of waterbut you gave one tree the special fertilizer and the other tree with the regular old fertilizer you've used before . After about a month , you noticed that the tree that got the special fertilizer grew over 100 apples than the other tree that grew about 40 apples . From this experiment , which of the following is considered the dependent variable ?

Answers

Answer:

Dependent variable: number of apples

Explanation:

In an experiment, the independent variable is the variable that isn't modified by the other variables measured in the experiment. In the example above indicated, the independent variable is the fertilizer used in the experiment. On the other hand, the dependent variable is the variable tested or measured in the experiment, thereby this variable is 'dependent' of the independent variable.

Which of the following is not found in an observational study? A-controlled variable B-manipulated variable C-None of these are found in an observational study. D-control group

Answers

Answer:

C-None of these are found in an observational study

Explanation:

(A.) controlled variables are a part of what's found in a controlled experiment. (B.) manipulated variables are a part of what's found in a controlled experiment. (C.) Answer choice A. or Controlled variables, Answer choice B. or Manipulated variables, and Answer choice D. or Control groups are a part of what's found in a controlled experiment. (D.) Control groups are a part of what's found in a controlled experiment. Therefor this only leaves one answer and that answer is Like I said C-None of these are found in an observational study.

Atoms have three subatomic particles: protons, neutrons, and electrons. ... Knowing what you know about the nucleus and the subatomic particles in the nucleus, what do you think is the charge of the nucleus of an atom? The nucleus of an atom has a positive charge because the proton is positive and the neutron is neutral.

Answers

The atom is positive.

Answer:

the atom is positive

Explanation:

It takes just four hours for one bacterium to become _____.

Answers

Answer: 256 bacterium.

Explanation:

suppose a bacterium would divide once in every half an hour, this means it would be double in half an hour.

therefore, a number of the bacterium after half an hour will be 1 x 2 = 2.

After one hour, we would have doubled the number of bacterium =2 x 2

= 4.

Also, in one and a half hours, it would become 4 x 2

= 8.

In 2 hours, it would be 8 x 2 = 16.

Also in two and half hours, it would  be 16 x 2

= 32.

In three hours, it would be 32 x 2

= 64.

In three and a half hours, it would be 64 x 2

= 128.

Funally, in four hours, the number of bacterium would have been multiplied to 128 x 2

= 256.

It takes just four hours for one bacterium to become 256 bacteria.

It should be noted that a bacterium will divide once in every half an hour. This implies that it'll be double in every half hour. Therefore, for an hour, there'll be 2 bacterium.

Since it doubles every half hour, in 2 hours, the value will be 16 bacteria. Therefore, the value in four hours will simply be:

= 16 × 16 = 256 bacterium.

Therefore, it takes just four hours for one bacterium to become 256 bacteria.

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science deals only with phenomena that can be _________. ??????

Answers

Answer:

OBSERVED!

Hope this helps :)

Answer: Observed

Explanation:

Science can only answer in terms of natural phenomena and natural processes. ... Though atoms cannot be seen with the naked eye, they can be studied with the tools of science since they are part of the natural world. Rutherford's story continues as we examine each item on the Science Checklist.

Which of the following is a polysaccharide often responsible for providing structure to plants? A. Amylose B. Cellulose C. Glucose

Answers

Answer:

Cellulose.

It's structural polysaccharide in plants

Cellulose is a polysaccharide often responsible for providing structure to plants

Option B is correct.

How do we explain?

Cellulose is a polysaccharide that is made up of glucose molecules that are linked together in a long chain. It is the most abundant organic compound on Earth, and it is found in the cell walls of plants. Cellulose provides structure to plants, and it also helps to protect them from damage.

Amylose is a polysaccharide that is also made up of glucose molecules, but the molecules are linked together in a different way than they are in cellulose. Amylose is found in starch, and it is not as strong as cellulose. Therefore Option B is correct.

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Why do viruses evolve so rapidly?

Answers

The major reason that viruses evolve faster than say, mosquitoes or snakes or bed bugs, is because they multiply faster than other organisms. And that means every new individual is an opportunity for new mutations as they make a copy of their genetic material.


3. What is another name or a sub-property of cohesion? Give an example of how this affects living
organisms

Answers

Answer:

Unity is the other name of cohesion.

Explanation:

The property of cohesion is to sticking together of something. The molecules of liquid stick together with the help of cohesion. This cohesion property  is very important for plants because with the help of this property, plants take water through roots from the soil and the water molecules are stick together with the help of cohesion. If cohesion is not present then the uptake of water can not be possible.

Which statement describes a similarity between asexual reproduction and sexual reproduction? Both processes involve fertilization. Both processes involve cell division. Both processes produce genetically identical offspring. Both processes require two parents.

Answers

Answer:

The correct answer is B. Both processes involve cell division.

Explanation:

Both asexual and sexual reproduction involve cell division; they are means of creating offspring.

Only sexual reproduction involves fertilization, so we know that choice A is incorrect.  Only asexual reproduction produces genetically identical offspring, so choice C is also incorrect.  Finally, only sexual reproduction requires two parents, so choice D is not correct either.

This leaves us with choice B as the correct answer.

Hope this helps!

Answer:

Answer is B

Explanation:

I got 92%, so there's a 2/25 chance that this answer is wrong, pls tell me if it's wrong

Starfish, sea stars, and sea urchins are classified as echinoderms. What does the prefix "echin-" mean?
A
smooth skin
thin skin
С
striped skin
D
spiny skin
dry skin
Chemical reactions in the body involve heat.
Some of the reactions are called exothermic. What does the prefix exo" mean?

Answers

Answer:

The prefix "echin-" means D. The prefix "exo" means outside/external.

Explanation:

If a patient was diagnosed with mitochondrial disease, what cells would NOT be likely to be responsible for their symptoms?​

Answers

Answer:

the mitochondria cell

Explanation:

80 POINTS
What does Eureka mean, and who is famous for using the word and why?
What was so clever about what Archimedes did?

Answers

Archimedes has gone down in history as the guy who ran naked through the streets of Syracuse shouting "Eureka!" — or "I have it!" in Greek. The story behind that event was that Archimedes was charged with proving that a new crown made for Hieron, the king of Syracuse, was not pure gold as the goldsmith had claimed.hopes this helps

Answer:

Explanation:hhjnj

Question 5
Ultraviolet (UV) radiation can damage DNA by breaking weak bonds. Which of the following best explains how this occurs?
A
UV radiation disrupts the double helix structure by breaking the covalent bonds between the nitrogenous base pairs,
B
UV radiation disrupts the double helix structure to breaking the hydrogen bonds between the nitrogenous base pairs.
С
UV radiation is able to break DNA strands in two by breaking covalent bonds between the sugar phosphate backbone molecules
D
UV radiation is able to break DNA strands in two by breaking hydrogen bonds between the sugar phosphate bachoone molecules

Answers

UV radiation disrupts the double helix structure to breaking the hydrogen bonds between the nitrogenous base pairs.

WHAT IS DNA?

DNA, known as deoxyribonucleic acid, is one of the two types of nucleic acids. It is a long double helical structure found in the nucleus of cells.

STRUCTURE OF THE DNA:

The DNA is made up of nucleotides. Each nucleotide consists of three components namely: phosphate group, nitrogenous bases and a pentose sugar.

In the DNA molecule, the four nitrogenous bases are Adenine, Cytosine, Guanine and Thymine. Adenine and Thymine bonds together while Cytosine and Guanine bonds together. Weak hydrogen bonds holds one nitrogenous base to its complementary base.

Therefore, an ultraviolet radiation can damage the DNA structure by breaking the hydrogen bonds between the nitrogenous base pairs.

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Unicellular organisms can be
Prokaryotes
Ameoba
bacteria
all of the above

Answers

Answer:

all of the above

How does
changing the
type of water
affect its ability
to absorb thermal
energy from the
Sun?
Is this a testable question or a non - testable question

Answers

Answer:  Testable Question

Explanation:

testable questions are always about

      changing one variable to see what the

       effect is on another variable.

Can be answered through that involve experiments, , or surveys , investigations , observations

DONT FORGET TO MAKE ME BRAINILIST

During photosynthesis, plants release_____into the air through their leaves.

Answers

Answer:

carbon dioxide is the answer

oxygen

Explanation:

because they do and they always have and they do that so we can

describe the important of nucleotides for proteins​

Answers

Answer: the two families of nucleic acids, rna and dna make the sequence of nucleotides in the dna or rna codes to make proteins in the cell

Explanation:

1) A class collected water samples from a nearby pond and wants to observe the samples for
microorganisms. Which microscope would be the most appropriate for the students to use?
A. Dissecting microscope
B. Compound light microscope
I
C. Transmission electron microscope
D. Scanning electron microscope

Answers

Answer:

Compound light microscope

Explanation:

This is the ideal microscope because it requires the passage of  harmless beam of light through the specimen.Since the pond contain living creatures this is best to use.

C and D both require the transmission of beam of electrons through a sample. D depends on the reflection of the electron  after scanning the specimen surfaces and sent this to the lenses of the observer.(C)involved the  passing of the beam of electrons through the specimen the interaction of the electrons with the atoms in the specimen(,therefore in both cases  these specimens can not be wet and living.

The specimen should be dry in both cases and therefore non -living ,because the chamber for the specimen must be a vacuum,and living organism can not survive in the vacuum. Thus pond water can not be used as specimen because the specimen in the water but me be living.

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