The Bodies of Arthropods Are Supported Mainly by ____

question 67

Multiple Choice

The bodies of arthropods are supported mainly by ____.

• A) an exoskeleton
• B) only nonskeletal structures
• C) a hydrostatic skeleton
• D) an endoskeleton
• E) joined exo- and endoskeletons

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Definitions:

Action Potential

A rapid rise and subsequent fall in voltage or electrical charge across a cellular membrane, the basis for neural communication and muscle contraction.

Afterpotential

Afterpotential is the transient electrical polarization that follows the action potential in nerve cells or muscle fibers, impacting the cell's excitability.

Depolarization

A decrease in the difference in electrical charge across a cell's plasma membrane, making the inside of the cell less negative compared to the outside.

Hyperpolarization

Hyperpolarization is an increase in a cell's membrane potential, making it more negative and less likely to fire an action potential.