Where will primary succession occur?
a. in a landscape with vegetation and soil
b. in a landscape with vegetation only
c. in a landscape with soil only
d. in a landscape without vegetation or soil

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Select the word from the list that best fits the definition a system made of 25 satellites

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.