The Vertebrates in Which Blood Flows Directly from Respiratory Organs

question 40

Multiple Choice

The vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart are the ________.

• A) amphibians
• B) birds
• C) fishes
• D) mammals
• E) reptiles

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Definitions:

Neurons

Specialized cells that transmit nerve impulses; the fundamental units of the brain and nervous system.

Neural Impulse

A Neural Impulse, also known as an action potential, is an electrical signal that travels along the axon of a neuron, transmitting information.

Synapse

A Synapse is the junction across which a nerve impulse passes from an axon terminal to a neuron, muscle cell, or gland.

Electrical

Pertaining to electricity, a form of energy resulting from the existence of charged particles such as electrons or protons.