How do whales differ from fish? whales use blowholes for breathing. whales have scales that cover their skin. whales develop lungs following metamorphosis. whales fertilize externally.

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 of the following is a testable hypotheses?

What organ is the first to receive nutrients that have been absorbed from the digestive tract?