For a Brief Period of Time, Shortly After a Neural

question 106

Multiple Choice

For a brief period of time, shortly after a neural impulse has been triggered, a neuron is not excitable and cannot fire another impulse. This is called _______________.

• A)action potential
• B)graded potential
• C)absolute refractory period
• D)depolarization

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Definitions:

Carnivore

Consumer in a food chain that eats other animals.

Biogeochemical Cycle

A natural process involving the circulation and transformation of chemicals in the Earth's ecosystems.

Food Webs

Complex networks of predators and prey showing the feeding relationships between organisms within an ecosystem.

Carbon Cycle

The series of processes by which carbon compounds are interconverted in the environment, chiefly involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, decay of organisms, and the burning of fossil fuels.