How does artificial selection differ from natural selection?? 1. During artificial selection, the mating pair are selected by humans
2. The outcome of artificial selection are predictable
3.Artificial selection requires variety in a population
4. Artificial selection does not help adapt to its environment
Select 2

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.

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !