The Most Plausible Hypothesis to Explain Why Species Richness Is

question 93

Multiple Choice

The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that

• A)tropical communities cover more surface area than temperate communities.
• B)adaptive radiation occurred in tropical areas earlier than in temperate areas.
• C)tropical regions have species with high birth rates and rapid growth.
• D)tropical regions often have more available water and higher levels of sunlight.

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Definitions:

Optimistic

A mindset or attitude that tends to expect the most favorable outcomes of situations or believes that good ultimately predominates over evil in the world.

Pessimistic

A tendency to anticipate unfavorable outcomes or emphasize the negative aspects of a situation.

Expected Time

An estimation of the duration it would likely take to complete a task, often used in project management for scheduling.

PERT Times

entails the estimated durations in the Program Evaluation and Review Technique, a method used in project management.