Answer:
Genetic variation.
Explanation:
It is caused by genes inherited from parents to offspring. It is a result of genetic information from parents.
HOPE THIS HELPED
A geologist studies the earth's history.
<span>There were probably several, but it is a deadly sickness if not treated and the outbreak in the middle ages killed 1/3 of Europe. Some cures were weird things like eating crushed emeralds or drinking poison. Some symptoms included swollen lymph nodes and bleeding out in many places </span>
The answer would be B.
Japan’s population has been at a steady decrease since as early as the year 2000 and the United States population has been at a steady increase dating back to 1790 from the research I have seen.
