Make a sketch of a human karyotype. Number the chromosome pairs. Label autosomes sex chromosomes.

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

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.