Sand dollars typically live in the intertidal zone. Which adaptation do sand dollars most likely have? a) lungs that can draw oxygen out of the air
b) a body structure that allows them to live in fresh or salt water
c) a body structure that allows them not to dry out when out of the water
d) gills that can draw oxygen out of the water

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.