Q: A, t, g, and c pairs are associated with what substance that is important in genetics? Choices: - plasma - bacteria - blood - dna A:
dna

Q: The negatively charged electrons are attracted to the positively charged what? Choices: - axon - atom - ion - nucleus A:
nucleus

Q: What do aquatic arthropods use to exchange gases? Choices: - lungs - pores - diaphragm - gills A:
gills