Which Characteristic of the Thoracic Vertebrae Distinguishes Them from Other

question 1

Multiple Choice

Which characteristic of the thoracic vertebrae distinguishes them from other vertebrae?

• A) The spinous process is short and thick.
• B) There are fewer vertebrae than in the other components of the spinal column.
• C) There is no body in the thoracic vertebrae.
• D) The body is heart-shaped.
• E) The body is rectangular.

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Definitions:

Competitive Exclusion

A principle stating that two species competing for the same resource cannot coexist at constant population values, if other ecological factors remain constant.

Interspecific Competition

A form of competition between individuals of different species competing for the same resource in an ecosystem.

Intraspecific Competition

A situation in ecology where individuals of the same species compete for the same resources in an ecosystem, such as food, space, or mates.

Character Displacement

The tendency for two similar species to diverge (become more different) in areas where their ranges overlap; reduces interspecific competition.