How Do Biologists Interpret the Pattern of Species Richness Shown

question 77

Multiple Choice

How do biologists interpret the pattern of species richness shown in the following illustration?

• A) Insects are the easiest organisms to collect and have been the most thoroughly evaluated.
• B) The basic insect body plan is highly adaptive,allowing insects to occupy an extremely large number of niches and habitats.
• C) Insects are less susceptible to the factors causing losses of biodiversity;other organisms were once proportionately more abundant.
• D) Small organisms require less resources and are proportionately more diverse;as the smallest organisms,insects display the greatest species richness.

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Definitions:

Internal Consistency

The extent to which different test items that propose to measure the same general construct obtain similar scores.

Odd-even Reliability

A measure of internal consistency reliability, where a test is split into odd and even items and the scores are correlated.

Construct Validity

The degree to which a test measures what it claims to be measuring, specifically in terms of whether the test actually assesses the theoretical construct it is designed to measure.

Predictive Validity

The level at which a score from a test or scale forecasts subsequent performance on a connected result.