PLEASE ANSWER ASAP FOR BRAINBLEST Your defense system attacks...unfamiliar organisms invaders that can cause disease/illness
A. immune system
B. Thymus
C. Bone marrow
D. B and T cells
E. Secondary lymphatic tissues

i think its A... im not 100% sure tho so let me know if im wrong :)

Explanation:

edge 2020

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.

hope it mark me as brainlieast.