What type of transport does not require energy to move molecules across the plasma membrane? bilayer active concentration gradient passive

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.

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?

Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.