Which field of study would be most useful for a person who wants to preserve a wetland

a.) ecology
b.) metrology
c.) geophysics
d.) chemistry

When should a bar graph be used? a. when there is no independent variable. b. when the independent variable is continuous and does not show a relationship to the dependent variable. c. when the independent variable is continuous and shows a causal link to the dependent variable. d. when the independent variable is composed of categories and does not show a relationship.

How do cells grow and reproduce to maintain homeostasis?

Is there any solid scientific evidence that humans have been cloned?