Which statement best describes a biogeochemical cycle?

a. a cycle that recycles chemical elements and water.

b. a cycle that continuously cycles chemical elements and water.

c. a cycle that continuously cycles chemical elements and water that are needed by organisms.

d. a cycle that continuously cycles chemical elements and water that are needed by organisms through an
ecosystem.

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

What amino acid is coded for by this sequence after the mutation

In response to framton's dialogue about his health issues, mr. sappleton replies: "no? " said mr. sappleton, in a voice which only replaced a yawn at the last moment. then she suddenly brightened into alert not to what framton was saying. what does this statement reveal about how mrs. sappleton feels about framton? a) she finds him boring. b) she's happy he came by. c) she finds him annoying. d) she feels sorry for him