* 1 point
Which structure does the following picture represent?
Nitrogenous base
Nucleotide
Deoxyribose

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring

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.