In Order for Traits to Evolve by Natural Selection, Individuals

question 8

Multiple Choice

In order for traits to evolve by natural selection, individuals must experience differential reproductive success. This means that

• A) individuals differ in the types of mutations that they carry.
• B) some individuals are more likely to have a certain trait than others.
• C) the number of individuals in a population that are successful at surviving and reproducing increases over time.
• D) individuals with certain traits are more successful than others in the population at surviving and reproducing.

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Definitions:

Cohesiveness

The quality of forming a united whole, especially in social groups, characterized by mutual agreement, solidarity, and attachment among members.

Urbanization

The process by which a community acquires the characteristics of city life.

World Population

The total number of human beings currently living on Earth, which is subject to change due to birth rates, death rates, and migration patterns.

Infant Mortality Rate

is a measure indicating the number of deaths of infants under one year of age per 1,000 live births in a given year, used as an important indicator of the health status of a population.