Environmental spills of petroleum are sometimes cleaned up by using?

A) protists

B) viruses

C) bacteria

D) bacteriophages

What role do enzymes play in DNA replication?

If each normal body cell of a human contains forty-six chromosomes, then the number of chromosomes in a human egg will be

What is needed for translation to occur

What ions must routinely move across cell membranes?

Which statement best describes one major function of a cells endoplasmic reticulum?

Terrell uses a microscope to look at slides of plant cells. He sees a cell with two nuclei that have visible chromosomes. In which stage of cell division is this cell?

How would you expect the attenuation of light (like with increased turbidity) to influence net productivity? Why?

What kind of cells have chloroplasts?

Which of the following is an output of photosynthesis? a. oxygen b. carbon dioxide c. water d. nutrients

A scientific hypothesis can become a theory if A. the entire scientific community accepts it. B. the hypothesis is tested extensively and competing hypotheses are eliminated. C. there are no other competing hypotheses. D.