Which scenario causes gene flow? a) an animal moves to a new population and mates.

b) new mutations arise within new populations.

c) one flower pollinates other flowers in its population.

d) a populations size decreases after a natural disaster.

Anybody who knows ap biology, can you friend or message me

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.