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alexdok [17]
3 years ago
10

The part of earth that contains the air we breathe ?

Biology
1 answer:
Crank3 years ago
3 0
This question is pretty vague and confusing.
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PLZ HELP ME I NEED IT CAUSE I SUCK AT SCI!!! After a town is abandoned, the concrete parking lots remain empty and inactive for
Ugo [173]

Answer: B

Explanation:

Would be last, wouldn’t they? That would make the most sense to me.

6 0
3 years ago
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Colony stimulating factors will result in A. platelet production B. fibrinolysis C. white blood cell production D. the productio
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Answer:

(C). white blood cell production

Explanation:

CSFs (colony stimulating factors) are glycoproteins that activate intracelluar pathways and promote proliferation of hemopoietic stem cell to form immune cells (white blood cells).

CSFs are released in response to infection and interacts with blood stem cells to produce new immune cells. These resulting new immune cells create an army of cells to fight against the infection and provide immunity.

Thus, the correct answer is option (C).

7 0
3 years ago
Why are lipids unique when compared to the other macromolecule groups?
Veronika [31]
Lipids are unique because, they are made from one carbon skeleton unlike the other macro molecules groups which are made from smaller building blocks.
With the exception of steroid hormones, lipids are generally hydrophobic. Also lipids are relative small molecules when compare in size with other macromolecules.
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3 years ago
Which organs produces and secretes enzymes that are essential for proper digestion?
ollegr [7]

Answer:

An enzyme refers to a kind of protein found inside a cell. The enzymes result in the chemical reactions within the body. The function to accelerate the rate of chemical reaction in order to support life. The enzymes in the body assist in performing very essential functions. These comprise eradicating toxins, building muscle, and dissociating particles of food at the time of digestion.  

Enzymes are needed for performing the proper function of the digestive system. Digestive enzymes are primarily produced in the stomach, pancreas, and small intestine. However, even salivary glands generate digestive enzymes in order to dissociate the molecules of food at the time of chewing.  

There are three prime kinds of digestive enzymes, which are classified on the basis of the reactions they catalyze. These are protease, amylase, and lipase.  

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What can a scientist do during an experiment so that others can repeat the experiment exactly the same way?
Zolol [24]
The answer is
c. he should write down data clear, step-by-step instructions as he goes along
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