A culture of living cells is often grown in a container called a(n) A. agar block
B. petri dish
C. graduated cylinder
D. glass slide

At which location in earth’s interior does the top density continue to increase as thickness decreases?

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

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