Experiment 1: dichotomous key practice a dichotomous key is an identification tool that starts with a broad defining characteristics and splits into two options until an organism can be identified. in this experiment, you will identify organisms by their binomial nomenclature using a dichotomous key.

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.