Suppose That the Number of Bird Species Is Determined Mainly

question 40

Multiple Choice

Suppose that the number of bird species is determined mainly by the number of vertical strata found in the environment. If so, in which of the following biomes would you find the greatest number of bird species?

• A) tundra
• B) savanna
• C) temperate broadleaf forest
• D) temperate grassland

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Definitions:

Posterior Tibial Artery

A major artery of the lower leg, supplying blood to the posterior compartment of the leg and plantar surface of the foot.

Thoracic Aorta

The portion of the aorta passing through the chest, from which arise the branches that supply oxygenated blood to the chest cage and organs within the thorax.

Abdominal Aorta

The main artery that runs down the abdomen and supplies blood to the organs and tissues of the abdomen.

Aortic Arch

The portion of the main artery that bends between the ascending and descending aorta, distributing blood to the head, neck, and arms.