Which of the Following Terms Describes All Organisms on Earth

question 55

Multiple Choice

Which of the following terms describes all organisms on Earth plus their environments?

• A) biosphere
• B) ecosystem
• C) habitat
• D) species

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Definitions:

Endocrine Gland

Glands of the endocrine system that release hormones directly into the bloodstream.

Hypothalamus

A region of the brain responsible for releasing hormones that regulate body temperature, hunger, moods, and the release of hormones from many glands, especially the pituitary gland.

Thalamus

A brain structure that acts as a relay station, processing and transmitting sensory information to the cerebral cortex.

Base of Skull

The bottom part of the skull, upon which the brain rests, consisting of several bones that form the cranial base and provide structural support.