Scientists Interested in How Populations Interact Within Communities Are Attempting

question 33

Multiple Choice

Scientists interested in how populations interact within communities are attempting to determine the species diversity of an island under study. What kind of data would be most helpful to the scientists in determining diversity?

• A) the number of different species on the island and the size of the population of each species
• B) the number of species on the island that are consumers, producers, and decomposers
• C) the relative biomass of each species on the island separated by trophic level
• D) the number of trophic levels on the island and the niche of each species

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Definitions:

Independent Variable

In scientific research, the variable that is manipulated or changed to observe its effect on a dependent variable.

Group Therapy Sessions

Psychotherapy that involves treating multiple clients together in a group setting.

Dependent Variable

The variable in an experiment that is expected to change in response to manipulations of the independent variable.

Control Group

In experimental research, a group of subjects who do not receive the experimental treatment and are used as a benchmark to measure the effect of the treatment.