Darwin hypothesized that there are definite steps to natural selection. one is populations are large and in the population variation exists. consider this population of disease-causing bacteria. what is the most likely cause for variation in this population?

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

Which units ate used to measure both velocity and speed? check all that apply

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