Inbreeding involves what? A. breeding one species with another to bring in a characteristic.
B. breeding unrelated dogs to increase genetic diversity.
C. breeding for less desirable characteristics.
D. breeding closely-related dogs with similar characteristics.

Energy derived from hot rocks and fluids beneath the earth’s surface is

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria