Shannon Blinks as She Steps Off the School Bus and Walks

question 115

Multiple Choice

Shannon blinks as she steps off the school bus and walks into a gust of wind.This automatic reaction is regulated by the:

• A)spinal cord.
• B)lower part of her brain.
• C)surge of her adrenal hormones.
• D)localization of function in her frontal lobes.

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Definitions:

Zooplankton

The nonphotosynthetic organisms present in plankton (e.g., protozoa, tiny crustaceans) and the larval stages of many animals. See plankton. Compare with phytoplankton.

Species Richness

The number of different species represented in an ecological community, landscape, or region.

Müllerian Mimicry

The resemblance of dangerous, unpalatable, or poisonous species to one another so that potential predators recognize them more easily. Compare with Batesian mimicry.

Batesian Mimicry

The resemblance of a harmless or palatable species to one that is dangerous, unpalatable, or poisonous so that predators are more likely to avoid them. Compare with Müllerian mimicry.