D. Birds compete for food

4. In a forest ecosystem, which is an abiotic factor?

a. The amount of rainfall

b. The size of the deer

C. The types of trees

d. The number of birds

5. Which of the following hest describes the difforong

To treat flower containers and kill bacteria, a designer should use a. soap b. water c. bleach d. dextrose.

Two similar species of fish live in the same lake. A biologist observes that one fish population is much larger than the other. The biologist believes that the difference is due to better protective coloration in the larger population.

You have just transferred care of a patient to an emergency department nurse. there was no blood or fluid on your gloves, and you have just taken them off and disposed of them. at this time, you should:

Which of these is a pure substance. dimond. salt. ocean water a. a and b. b and c

is the net movement of molecules or ions from a region of higher concentration to a region of lower concentration brought about by the energy of the molecules

What does melanin mean?

What are the chemical componets of DNA

Amoeba paramecium and spirogyra are diverse. why then are they all classified as protists

Which of the following statements about stability is NOT true? a. Skilled athletes have high levels of stability. b. Stability can be learned through practice. c. Stability is genetic and cannot be improved. d.

Why do we have six different crystal structures?