A. heterozygous
B. alleles
C. homozygous dominant
D. homozygous recessive

What is a coast of using technology to transport water? a.cities can be built in otherwise uninhabitable areas. b.crops can be irrigated and grown in new areas. c.floods can be averted in flood-prone areas. d.freshwater supplies can be depleted in an area.

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays