Q: The major classes of living members of this phylum include gastropods, bivalves, and cephalopods? Choices: - insects - crustaceans - invertebrates - mollusks A:
mollusks

Q: Each organism inherits one of what item for each gene from each parent? Choices: - molecule - phenotype - cell - allele A:
allele

Q: What helps amplify the effects of extracellular signals? Choices: - electrical cascades - spontaneous cascades - mutation cascades - enzymatic cascades A:
enzymatic cascades