Over the Past 600 Million Years,the Overall Trend in the Number

question 32

Short Answer

Over the past 600 million years,the overall trend in the number of species has been ________.

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Definitions:

Depolarization

The process by which a cell's membrane potential becomes less negative, moving towards a more positive charge, typically initiating an action potential.

Activation Gate

A mechanism of ion channels within cellular membranes that allows ions to enter or exit a cell in response to physiological signals.

Continuous Conduction

The propagation of an electrical impulse along an unmyelinated axon without interruption.

Action Potentials

Rapid, temporary changes in the electrical membrane potential of a cell, which allow for the transmission of signals along neurons.