Which of These Animals Has a Body Supported by a Hydrostatic

question 1

Multiple Choice

Which of these animals has a body supported by a hydrostatic skeleton?

• A) lobster
• B) deer
• C) fruit fly
• D) leech
• E) millipede

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Definitions:

Cytoskeleton

A complex network of interlinking protein filaments and tubules in the cytoplasm of cells, giving them shape, coherence, and the ability to move.

Support

The action or role of bearing the weight or stress of something, or providing assistance and stability when needed.

Cytoplasm

The jelly-like substance within a cell that contains the organelles, excluding the nucleus.

Plasma Membrane

The lipid bilayer that encloses the cytoplasm of a cell, providing structural support and controlling movement of substances in and out of the cell.