In Which Habitat Would O₂ concentration Most Likely Be the Lowest

question 58

Multiple Choice

In which habitat would O₂ concentration most likely be the lowest?

• A) A subnivean air space
• B) An open meadow at 4000 m elevation
• C) The bottom of a waterfall
• D) Pond water with a lot of algae

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Definitions:

Sternocleidomastoid

A muscle in the neck that plays a key role in the movement of the head.

Temporalis

A broad, fan-shaped muscle on each side of the head that is involved in chewing and helps to close the jaw.

Vocalis

The muscle located within the vocal folds that adjusts tension, playing a key role in producing speech sounds by controlling pitch and tone.

Masseter

A facial muscle that plays a major role in the chewing process by elevating the mandible (jawbone).