In Darkness or Conditions of Dim Light,________ Muscles of the Iris

question 17

Multiple Choice

In darkness or conditions of dim light,________ muscles of the iris are stimulated to contract,which ________ the pupil.

• A) radial,dilates
• B) circular,dilates
• C) radial,constricts
• D) circular,constricts

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Definitions:

Fertility

The natural capability to produce offspring; a measure of reproduction efficiency.

Agrarianism

A social and political philosophy that values rural society as superior to urban society and sees farming as a way of life that can shape ideal social values.

Earth's Population

The total number of human beings currently living on the planet, which is subject to change due to factors like birth rates, mortality rates, and migration.

Population Growth

Population growth is the increase in the number of individuals in a population, often measured by the birth rate minus the death rate plus net migration.