What is the goal when using a dichotomous key?

A- to see changes in an organism

B-to analyze anchganism's DNA

C- to determine lifespan of organisms

D- to identify an organism

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.