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kupik [55]
3 years ago
9

7. The natural differences between individuals of a species are referred to as

Biology
1 answer:
Yuki888 [10]3 years ago
3 0

Answer: Natural variation.

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A main job of hcl is to begin _______ digestion. carbohydrate fat protein
s344n2d4d5 [400]
The answer to this is protein.

Hydrochloric acid in digestive system is found in stomach, which is the only main digestive organ with an acidic pH 2.

In the stomach, only one kind of the primary food substance is chemically digested, which is protein. It is digested with the help of enzyme Pepsin, which breaks protein chains into polypeptides.

After that, the other organs of the digestive system has more of a neutral to slightly alkali condition, which is not related to hcl. Therefore, the answer is protein.
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3 years ago
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How is it possible that functionally infinite variations of antibodies can be made from one set of genes?
Degger [83]
The practically boundless varieties of antibodies can be produced using one arrangement of qualities is introns and exons take into account one quality coding to really code for a wide range of antibodies. Amid the procedure of RNA grafting, introns are evacuated and exons joined to frame a bordering coding succession.
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One substance has no membrane transporters to move it but can diffuse freely through open leak channels if there is a concentrat
Rama09 [41]
<h2>Urea </h2>

Explanation:

Urea is a small nitrogenous compound which is the main end product of protein catabolism in mammals

  • Urea is a nitrogen-containing substance normally cleared from the blood by the kidney into the urine
  • It is made predominantly in the liver from ammonia and bicarbonate and is one of the main components of urine
  • The rate of synthesis varies from 300 to 600 mmol/day depending on the protein intake
  • All of this urea eventually finds its way into the urine
  • Because urea makes up a large part of the obligatory solute excretion, its osmotic pressure requires significant volumes of water to carry the urea
  • Urea passively crosses biological membranes, but its permeability is low because of its low solubility in the lipid bilayer
  • Some cells speed up this process through urea transporters, which move urea by facilitated diffusion
  • Urea is passively reabsorbed in the proximal tubule, but its route of transport is not clear
  • Urea transporters have not yet been identified for the proximal tubule
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3 years ago
Which statement is best supported by the data on the map?
Leto [7]

Answer:

B. Some countries have many sources of beryllium, and some have no sources of beryllium.

Explanation:

Beryllium is a very important mineral that is present in many countries. All countries did not have beryllium deposits. Some countries have many sources and deposits of beryllium, and some have  no sources of beryllium. There are many deposits of beryllium in different parts of United states of America. Those countries which have no beryllium deposits have cell phones because they purchase cell phones from international market by paying money which can be earned through selling of its goods.

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3. What instrument measures air pressure? What unit of measurement is used to measure air
diamong [38]

Answer:

Barometer (mb)

Explanation:

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3 years ago
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