One Concern with Global Sea Temperatures Increasing Is the "Bleaching

question 71

Multiple Choice

One concern with global sea temperatures increasing is the "bleaching" of corals.What did the scientists propose happens to coral when it bleaches?

• A)The coral dies
• B)The coral loses its ability to perform photosynthesis
• C)The coral becomes dormant until the water temperatures drop again
• D)The coral releases its symbiotic photosynthetic algae
• E)The photosynthetic algae in the coral grow more rapidly

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Definitions:

Absolute Threshold

The minimum stimulus intensity that an organism can detect at least 50% of the time.

Selective Attention

The process by which a person focuses on one or a few sensory inputs while ignoring other stimuli.

Perceptual Set

A tendency to perceive or notice some aspects of the available sensory data and ignore others, influenced by expectations, emotions, and culture.

Expectancy Effect

The phenomenon where a researcher's expectations influence the outcome of a study.