The Symmetry of Echinoderms Generally Includes

question 28

Multiple Choice

The symmetry of echinoderms generally includes

• A)radially symmetrical larvae and adults.
• B)bilaterally symmetrical larvae and adults.
• C)spherically symmetrical larvae and adults.
• D)bilaterally symmetrical larvae and radially symmetrical adults.

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Definitions:

Inside Cell

Pertaining to the internal environment or components within a cell, including organelles, cytoplasm, and genetic material.

Plasma Membrane

This is a protective double lipid layer encasing the cytoplasm of a cell, overseeing the transportation of substances across the cell boundary.

Membrane Potential

The electric potential difference across a cell's plasma membrane, crucial for the transmission of nerve impulses and muscle contraction.

Local Potential

A reversible, localized change in the electrical potential of a neuron's membrane, which can lead to an action potential if a certain threshold is reached.