Over the Course of Geological Time, the Extinction Rate for Mammals

question 17

Multiple Choice

Over the course of geological time, the extinction rate for mammals has exceeded __________ percent per million years.

• A) 1 to 2
• B) 10 to 20
• C) 40
• D) 50

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Definitions:

Sensory Neuron

A type of neuron responsible for converting external stimuli from the environment into internal electrical impulses towards the brain or spinal cord.

Motor Neuron

A type of neuron that transmits signals from the brain or spinal cord to muscles or glands, triggering movement or action.

Sciatic

Pertaining to the sciatic nerve, which is the longest nerve in the human body, running from the lower back down through the leg.

Femoral

Pertaining to the femur or the thigh region.