Field Experiments Differ from Laboratory Experiments in That

question 28

Multiple Choice

Field experiments differ from laboratory experiments in that

• A) laboratory experiments include controls, but field experiments need not.
• B) field experiments can be more easily replicated than laboratory experiments.
• C) laboratory experiments allow variables not of direct interest to be controlled, while in field experiments these typically vary.
• D) field experiments can teach us about ecological systems, but laboratory experiments cannot.
• E) field experiments are often used by ecologists, but laboratory experiments never are.

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Definitions:

Myelin Sheath

A fatty layer that surrounds neurons, providing insulation and speeding up the transmission of electrical signals.

Neural Messages

Information transmitted through the nervous system by way of electrical and chemical signals between neurons.

Neurons

Specialized cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells through electrical and chemical signals.

Hypothalamus

A region of the brain responsible for the production of several essential hormones, regulating body temperature, hunger, moods, and the release of hormones from many glands.