It Is Difficult to Estimate Current Rates of Extinction, but We

question 74

Multiple Choice

It is difficult to estimate current rates of extinction, but we know that extinction rates have risen dramatically in recent years because

• A) most species in danger of extinction are microscopic.
• B) new species are evolving as fast as species are becoming extinct.
• C) current rates of extinction are much higher than that of background rates.
• D) the fossil record is unreliable.
• E) background extinction rates have increased.

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Definitions:

Stereotype Threat

The risk of confirming negative stereotypes about one's group, which can hinder performance in academic, professional, and social contexts.

Sensory Threshold

The minimum intensity of stimulation required to produce a sensation or elicit a perceptual response.

Information-Processing

A cognitive approach describing how the human mind u200ctransforms, stores, and retrieves information, similar to how computers process data.

Sensing Stage

A developmental phase where an organism primarily learns and interacts with the world through sensory experiences.