One is 12 centimeters, and the other is 15 centimeters. in millimeters, what is the difference of the two heights?

Classify the structures as homologous or analogous, depending on their structure and function.

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

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis