After their creation, lymphocytes migrate to other immune system organs, such as the where they develop more fully and are stored until needed.

Answer;

Thymus.

After their creation, lymphocytes migrate to other immune system organs, such as the thymus, where they develop more fully and are stored until needed.

Explanation;

The thymus is a specialized primary lymphoid organ of the immune system where the maturation of T-cells takes place.

T lymphocytes are formed from a common lymphoid progenitor in the bone marrow that also gives rise to B lymphocytes.

The progeny used to give rise to T cells leave the bone marrow and migrate to the Thymus where maturation of the T cells take place.

the most speciallized is b. grizzly bear

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)