From the List Provided, Select the Two Circumstances Necessary for Evolution

question 174

Multiple Choice

From the list provided, select the two circumstances necessary for evolution to occur.

• A) There must be a variation for a trait within a population.
• B) There must be competition for resources.
• C) The environment should remain constant.
• D) A population must already be adapted to the environment.

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Definitions:

Mesenteries

Folds of peritoneal tissue that attach the intestines to the abdominal wall, containing blood vessels, nerves, and lymphatics to support the intestines and maintain their structure.

Greater Omentum

Peritoneal fold passing from the greater curvature of the stomach to the transverse colon, hanging like an apron in front of the intestines.

GI Tract

The gastrointestinal tract, a continuous tube running from the mouth to the anus, responsible for digestion and absorption of nutrients.

Liquefying

The process of turning a substance into a liquid, either through heating, pressure change, or chemical reaction.