The elements or compounds that enter into a chemical reaction are called?

A. Products

B. Catalysts

C. Active sites

D. Reactants

Which of these is a function of estrogen in reproduction? A. Releasing the growth hormone B. Developing the motility of sperm C. Stimulating the release of luteinizing hormone D. Reducing the hardness of bone tissue

What happens to carbon atom during light dependent reactions

If an dna molecule is compared to a spiral staircase, what parts make up the steps. A) pairs of nitrogen bases. B) sugar and nitrogen base. C) sugar and phosphate. D) pairs of sugars.

A basic experiment involves a minimum of

Why does primary ecological succession take place slowly?

What is the difference between bacillus, coccus, and spirillum

What is always true of scientific practices a. They prove a hypothesis to be correct b. They involve steps performed in the same order c. They seek to produce verifiable data d. They lead to the same interpretation

Which statement is true about the scientific method

How do cells correct errors in DNA that would disrupt their function

Which is true of oxidation? a) It is a physical process b) No change occurs in the makeup of rock c) Rocks weather at different rates d) Water freezes in cracks in rock