A. How do tropical rainforest ecosystems differ from other forest ecosystems? They have less biodiversity and less light that reaches the forest floor than other forest ecosystems.

B. They receive more rainfall and have warmer average temperatures than other forest ecosystems.

C. They have warmer average summers and milder average winters than other forest ecosystems.

D. They have more limited areas along coastal areas than other forest ecosystems.

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

As a small change in a person's dna can cause a genetic disorder

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?