The number of different species and the number of individual organisms describes... A. An ecosystem

B. The biome

C. The biodiversity

When should a bar graph be used? a. when there is no independent variable. b. when the independent variable is continuous and does not show a relationship to the dependent variable. c. when the independent variable is continuous and shows a causal link to the dependent variable. d. when the independent variable is composed of categories and does not show a relationship.

What food can provide the body with a quick source of the energy needed to carry out cell functions (a) whole grain bread (b) ground hamburger (c) vegetable oil (d) whole milk

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