27. The complete meiotic division occurs exactly during somatogenesis between the stages of: (A) Resting and dividing spennatogonia (B) Primary and secondary spennatocytes (C) Primary spermatocyte to spermatic level (D) Spermatid to sperm.

where is the option.let me know

not: both offer magnification to the atomic level.

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101