In will love biology please help me​

Dna is the genetic material that makes up living things, and folic acid plays an important role in the information of dna. jon wants to study the effect of folic acid on dna formation in microbes. which statement accurately describes the variables in this study

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

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