In a Survivably Cold Environment, an Ectotherm Is More Likely

question 28

Multiple Choice

In a survivably cold environment, an ectotherm is more likely to survive an extended period of food deprivation than would an equally sized endotherm because the ectotherm

• A) maintains a higher basal metabolic rate.
• B) expends more energy per kg of body mass than does the endotherm.
• C) invests little energy in temperature regulation.
• D) metabolizes its stored energy more readily than can the endotherm.
• E) has greater insulation on its body surface.

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Definitions:

Sensory Neuron

A neuron responsible for converting external stimuli from the environment into internal electrical impulses.

Motor Neuron

A type of neuron that sends impulses from the brain and spinal cord to muscles, stimulating movement.

Signal Transmission

The process by which information is conveyed from one place to another through electrical impulses, chemical signals, or physical movements.

Dendrites

A neuron’s often bushy, branching extensions that receive and integrate messages, conducting impulses toward the cell body.