Which of the Following Statements About Ecological Pyramids Is True

question 27

Multiple Choice

Which of the following statements about ecological pyramids is true?

• A)Pyramids built upon the biomass of organisms at each level eliminate size as a factor.
• B)Energy gains between trophic levels occur based upon biomass conversion.
• C)The limited number of trophic levels in an ecological pyramid is due to increasing complexity and size of organisms at each greater trophic level.
• D)A pyramid of organism numbers will always have a large base and a small top.
• E)None of the choices are true.

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Definitions:

Sternocleidomastoid

A muscle in the side of the neck that acts to flex and rotate the head.

Orbicularis Oculi

A muscle around the eye socket that enables the eye to close and squint.

Masseter

A major muscle of mastication involved in jaw closure, located at the side of the jaw.

Plantar Flexes

The movement decreasing the angle between the dorsum of the foot and the leg, for example, standing on tiptoes.