Organisms That Obtain Heat Primarily from the External Environment Are

question 39

Multiple Choice

Organisms that obtain heat primarily from the external environment are called ____.

• A) endotherms
• B) isotherms
• C) exotherms
• D) ectotherms
• E) allotherms

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Definitions:

Sacrum

A large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity, where it is inserted like a wedge between the two hip bones.

Vertebrae

The individual bones that make up the vertebral column (backbone) in vertebrates.

Intervertebral Disk

A fibrocartilaginous structure located between the vertebrae of the spine, acting as a shock absorber and allowing for flexibility.

Sciatica

A condition of pain going down the leg from the lower back, caused by irritation or compression of the sciatic nerve.