Ask your own question, for FREE!
Biology 7 Online
OpenStudy (anonymous):

Why are guard cells necessary? A. Stomata cannot open and close on their own. B. Stomata cannot let gases through, only water. C. Stomata never close. D. Guard cells are not necessary; they just improve plant function.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Arriyanalol: i need help
14 hours ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
17 hours ago 8 Replies 2 Medals
Legomaster346: What colleges are good that are near Arab Alabama?
1 week ago 5 Replies 0 Medals
Arriyanalol: i need help
1 week ago 6 Replies 2 Medals
Arizona: does anyone know the percentage rate of 30,000 and 40,000
1 week ago 0 Replies 0 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!