Which of the following is not a component of a normal experiment? A. Dependent variable
B. Independent variable
C. Control group
D. Validity group

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

Abiologist counts the number of rabbits in a population each year and observes a decrease in population. since the coyote population has exploded, the biologist concludes that the coyote population has had a negative interaction with the rabbit population. which describes the biologist’s actions? a.) experimentationb.) inferencec.) observationd.) interacting