Which of the following is a good reason for why tobacco smoke is considered a carcinogen?

a.
it causes mutations leading to cancer.
b.
it causes mutations leading to apoptosis.
c.
it causes mutations leading to inhibition of cell division.

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.