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jenyasd209 [6]
3 years ago
5

Membrane-bound proteins that allow identification of a cell as self or nonself are called

Biology
1 answer:
zloy xaker [14]3 years ago
7 0
I think the answer is recognition proteins!
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Which of the following functions does the myelin sheath perform for a nerve cell?
Ira Lisetskai [31]

Answer:

a. insulation  

Explanation:

The myelin sheath provides increased cell isolation (increased membrane resistance) because there are no membrane leakage channels in which there is myelin.

In addition to no membrane leakage channels, there is also virtually no type of membrane channel when there is myelin sheath (eg sodium and potassium pumps), which causes the cell a lower need for protein synthesis, or that is, less energy expenditure.

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3 years ago
TRUE OR FALSE : Cohesion is when water molecules stick to OTHER substances.
tekilochka [14]

Answer:

true

Explanation:

Thus when the positive side on one water molecule comes near the negative side of another water molecule, they attract each other and form a bond. This "bipolar" nature of water molecules gives water its cohesive nature, and thus, its stickiness and culpability

3 0
3 years ago
Can you guys help me with number 8. Plz plz plz
Oksanka [162]

RR x rr

or if you're using the letter "t" to represent the alleles TT x tt

Homozygous means that a particular gene has identical alleles on both chromosomes. TT is for a dominant (stronger) trait and tt is for a recessive (weaker) trait.


Hope this helps! :)

6 0
3 years ago
These are the three main organs that make up the plant body.
liraira [26]

Answer:

Chlorophyll-to trap enough light for photosynthesis

5 0
3 years ago
Read 2 more answers
A balanced diet contains all the ingredients needed to maintain homeostasis. many important compounds in the body contain nitrog
liq [111]

He or she is said to be in a positive nitrogen balance state.

Nitrogen balance is the traditional method of determining dietary protein requirements. Determining dietary protein requirements using nitrogen balance requires that all nitrogen inputs and losses are carefully collected, to ensure that all nitrogen exchange is accounted for. Positive nitrogen balance is associated with periods of growth, hypothyroidism, tissue repair, and pregnancy. This means that the intake of nitrogen into the body is greater than the loss of nitrogen from the body, so there is an increase in the total body pool of protein.






3 0
3 years ago
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