To Survive Successfully on Land, Plants Needed to Develop

question 57

Multiple Choice

To survive successfully on land, plants needed to develop:

• A)photosynthesis.
• B)swimming sperm.
• C)internal skeletons.
• D)the ability to use oxygen.
• E)methods to prevent water loss.

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Definitions:

Axon

A long, slender projection of a neuron that typically conducts electrical impulses away from the neuron's cell body.

Firing

In the context of neural activity, it refers to the action of a neuron when it sends an electrical signal down its axon to communicate with other neurons.

Action Potential

A rapid, temporary change in a cell's electrical charge that facilitates the transmission of signals in neurons.

Serotonin

A neurotransmitter involved in many functions including mood regulation, digestion, and sleep.