Elements 2 & 3 are major building blocks in glucose, fructose, and sucrose. what are these elements?

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

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

The offspring of a black cat and a white cat is a gray cat, it has the genotype bw if a black cat mates with a gray cat the chance that the offspring is white will be what percent?