Which of the Following Must Exist in a Population Before

question 56

Multiple Choice

Which of the following must exist in a population before natural selection can act upon that population?

• A)genetic variation among individuals
• B)variation among individuals caused by environmental factors
• C)sexual reproduction
• D)genetic homogeneity among population members

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Definitions:

Nodes

Points in a network or system where pathways intersect or branch, often used to describe components in a computer network or points within a biological network.

Flashbulb Memory

Highly detailed and vivid memories of significant or emotional events, which seem to be recorded in the mind like a picture taken by a flashbulb.

Implicit Memory

Unconscious retention and recollection of past experiences.

Procedural Memory

A type of long-term memory that enables people to perform tasks without conscious awareness of having learned them.