Define the Following Terms

question 31

Essay

Define the following terms
-privacy

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Definitions:

Sarcomere

A segment of a striated muscle cell located between adjacent Z lines that serves as a unit of contraction.

Exoskeleton

An exoskeleton is a rigid external covering for the body in some invertebrate animals, especially arthropods, providing protection and support for the organism.

Gastrovascular Cavity

A gastrovascular cavity is a single internal cavity in certain simple animals that acts both in digestion and the distribution of nutrients.

Pedal Disk

The base of a cnidarian, such as a sea anemone or coral, that attaches to a substrate.