Analyze how crossing over is related to variation.

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

Select the word from the list that best fits the definition a system made of 25 satellites

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased