What is true about the relationship of dna and genes? segments of dna contain the code to make a gene. each dna molecule makes up a segment of a gene. segments of genes contain the code to make dna. each gene contains a segment of a dna molecule.

Which of the following is a difference between a food chain and a food web? selected: a. food webs contain both plants and animals. food chains only contain animals. this answer is incorrect. b. food webs show energy transfer. food chains show which animal eats which animal. c. food webs separate organisms by tropic level. food chains do not. d. food webs are a complex patterns of energy flow. food chains only show one line of energy flow.

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

The response is the basis for vaccination. primary secondary tertiary none of the above