Demographers Use Several Indicators to Compare Health and Living Conditions

question 58

Multiple Choice

Demographers use several indicators to compare health and living conditions in different countries. Two indicators that are used to measure health conditions are life expectancy and

• A) immunization rates.
• B) death rates.
• C) infant mortality rates.
• D) birth rates.

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Definitions:

Random Chance

The occurrence of events without a determinable cause, often affecting genetic variations and evolutionary processes in organisms.

Natural Selection

A process in evolutionary biology where organisms with traits better adapted to the environment have higher survival rates and reproductive success, leading to the accumulation of beneficial traits in a population over generations.

Homoplasic Traits

Homoplasic traits are similar features in organisms that evolved independently, not from a common ancestor, often due to convergent evolution or parallel evolution.

Homologous Traits

Features shared by two or more species inherited from a common ancestor.