The Primary Role of the Carbonic-Acid-Bicarbonate Buffer System Is to

question 20

Multiple Choice

The primary role of the carbonic-acid-bicarbonate buffer system is to

• A)buffer stomach acid.
• B)buffer carbonic acid formed by carbon dioxide.
• C)limit pH changes caused by organic and fixed acids.
• D)buffer the urine.
• E)increase ventilation.

Grasp the defining characteristics and examples of ecological niches.

Identify the various types of species interactions and their ecological impacts.

Understand the intermediate disturbance hypothesis and its relevance to biodiversity.

Define and exemplify mimicry and its evolutionary significance.

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Definitions:

Tibialis Anterior

A muscle in the lower leg that dorsiflexes and inverts the foot.

Calcaneal Tendon

Common tendon of the gastrocnemius, soleus, and plantaris muscle that attaches to the calcaneus; also called Achilles tendon.

Sternocleidomastoid

A muscle in the neck that is responsible for rotation and flexion of the head.

Orbicularis Oculi

A facial muscle that encircles the eye socket, responsible for closing the eyelids.