The
Thymocyte progenitors enter the subcapsular region of the thymus as
double-negative cd3- t cells where the double negative refers to lack of
cluster determinants CD4 and CD8. Double-negative cd3- t cells exist as small population
that is 1%-5% of lymphocytes in the lymphoid organs and peripheral blood of
humans and normal rodents.
Nucleus. it’s the main part that sorts and tells cells what to do and where to go.
<span>D.) increased number of small crabs because fishing nets catch mostly large crabs
This situation is caused indirectly.</span>
Water is a polar molecule because its opposite ends have opposite electric charges.
