After fertilization, the cell begins to divide by mitosis. which statement describes what occurs with the chromosomes?

Which direction does the energy flow in this energy pyramid ?

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 label correctly identifies what x represents in the concept map?