When Body Temperature Rises, a Center in the Brain Initiates

question 34

Multiple Choice

When body temperature rises, a center in the brain initiates physiological changes to decrease the bodytemperature. This is an example of

• A) negative feedback.
• B) positive feedback.
• C) nonhomeostatic regulation.
• D) diagnostic regulation.
• E) fever.

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Definitions:

Actin Filaments

Protein filaments in muscle cells and other cells that are primarily involved in the contraction and movement processes.

Intermediate Filaments

A component of the cytoskeleton in eukaryotic cells, providing mechanical support and playing a role in cell integrity and structure.

Microtubules

Cylindrical structures within cells that provide shape and facilitate movement and transport of materials.

Endosymbiosis

A theory that explains the origin of eukaryotic cells from prokaryotic organisms, through a symbiotic relationship.