Answer:
The first bullet point is correct
Explanation:
The cell membrane controls what comes in and out of the cell, it needs minerals so would not block them completely, and water does not enter cells so it is clearly the first one.
The function of a protein is determined by its shape. The shape of a protein is determined by its primary structure (sequence of amino acids.) The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.
Blue Carb which scientifically is known as “<span>Callinectes sapidus” is a type of vertebrates. </span>A possible reason for the fluctuation in their population can
be the eutrophic dead zones in the Chesapeake Bay which naturally cases low
levels of oxygen dissolving into the Bay leading to fluctuation of Blue crab
population.
<span>Another reason also can be the shorter
life span of blue crab, its average life span recorded is one to three years
which is very short in comparison to striped bass, although some blue crabs are
caught after being tagged at the age of 6 to 8 years as well.</span>
