Evolutionary Changes Occur When _____ Acts Upon Populations Containing Individuals

question 25

Multiple Choice

Evolutionary changes occur when _____ acts upon populations containing individuals with genetic differences.

• A)continental drift
• B)natural selection
• C)weather
• D)mutation

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Definitions:

Spontaneous Abortion

The medical term for a miscarriage, referring to the natural loss of a pregnancy before the fetus can survive outside the uterus.

Third Trimester

The final phase of a pregnancy, spanning from approximately the 28th week until delivery, characterized by significant growth and maturation of the fetus.

Dizygotic Twins

Also known as fraternal twins, are siblings born from two separate eggs fertilized by two different sperm cells, sharing about 50% of their genetic material.

Fertilized Egg

A fertilized egg, or zygote, is the result of the fusion of a human egg and sperm, marking the beginning of human development.