Natural Selection Can Move a Population Beyond Its Initial Range

question 61

Multiple Choice

Natural selection can move a population beyond its initial range of variation if there is

• A) mutation.
• B) fixation.
• C) hidden variation.
• D) both a and

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Definitions:

Promissory Estoppel

A legal principle that prevents a promisor from retracting a promise which the promisee relied on, leading to a detriment.

Equitable Doctrine

Legal principles developed by courts based on fairness and justice, used to supplement and correct strict legal rules that might lead to unfair results.

Unjust Enrichment

A legal principle that prevents one party from gaining a benefit at another's expense without compensation.

Implied in Fact Contract

An agreement inferred from the actions, behavior, or circumstances of the parties involved, rather than written or spoken words.