Organisms contain different levels of organization within their bodies. Arachnoidiscus ehrenbergi, pictured below, is a single-celled organism that is part of the group of algae known as diatoms. Which level of organization is seen in both Arachnoidiscus ehrenbergi and the human stomach?

b. lithosphere, asthenosphere, mesosphere   is the answer most likely

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