C. Red blood cells carry oxygen.
Answer:
D. They reproduce quickly and take up little space.
Explanation:
The important<span> point is that the </span>surface area<span> to the volume ratio gets smaller as the </span>cell<span> gets larger. Thus, if the </span>cell<span> grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased </span>cellular<span> volume.</span>
<span>The discoverers of DNA were not
James D Watson and Francis Crick. They are the first scientist to formulate an
accurate description of the DNA’s (deoxyribonucleic acid) complex ,
double-helical structure. They discovered that base pairing nucleotides must
be; adenine and thymine; and cytosine and guanine. These base pairs are held
together by a hydrogen bond, atype of chemical reaction that s easy to break
and easy to reform. The statement is “DNA
is a double helix made of two strands linked together with hydrogen
bonds.”</span>