ASAP Which structure in a mollusk performs a similar function as an endoskeleton in an echinoderm?

mantle
radula
tube foot
gill

Look at the picture below . what does this picture represent ?

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.

As scientist had investigated evolution from a variety fields they have found