Ol1 Cells need to differentiate into particular cell types to perform different functions
within an organism. Differentiation occurs when cells:
Receive new DNA
Are phagocytosed
Acquire different sub-cellular structures
Lose genes
eedback?

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

"it built up in the atmosphere"

i think thats it, idk, i tried looking for this exact q& a for grad. and idk if i got this question right or sorry if im wrong

answerdecomposition;