Answer:
z is the correct one.I think as so.
<span>Amino acids are
weak acids that have at least 2 pka values. They have two titratable protons
that composed of alpha carboxyl (-COOH) and alpha amino (-NH3+), but some amino
acids have a third titratable protons with ionizable groups in the R side chain.
In addition, the structure of amino
acids in peptides and proteins are determined by the charges of the titratable
group and by the R group. </span>
Answer:
the trapezius muscle.
Explanation:
the trapezius muscles are a pair of triangular muscles that extend over the back of the neck and shoulders, moving the head and shoulder blades.
Homeostasis is the maintaince of a stable internal condition. If the cell membrane controls this by regulating what goes in and out of the cell(thats what the membrane does) Then the membrane helps maintain it, so if it were damage, you would have troublr mainting homeostasis
The answer is C. This is correct because if the tree is near the equator, it will constantly be hot nearly everyday, because the Sun points straight at the equator. Because there is only one temperature, the tree doesn’t have to worry about dealing with the cold, only the heat.
