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:

Average Family Income

The mean amount of money earned by members of a family in a given period, often used to measure economic status.

Confidence Interval

A span of numbers obtained from sample observations, expected to encompass the value of an unseen population characteristic.

Null Hypothesis

A statement or hypothesis that indicates no statistical significance or effect, essentially asserting that any observed differences are due to chance.

Alpha Level

Alpha level, often denoted as α, is a threshold value used in statistics to determine the significance of a result, especially in hypothesis testing; it represents the probability of erroneously rejecting the null hypothesis.