What is the answer too this

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

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 should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time