Answer:
D
It helps the reader to understand which layers of the atmosphere are most important. Don't cheat
<span>meiosis
This does a good job of explaining it.
https://www.khanacademy.org/test-prep/mcat/cells/cellular-division/a/mitosis-and-meiosis
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<span>Chemiosmosis is the movement of ions across a selectively permeable membrane, down their electrochemical gradient. More specifically, it relates to the generation of ATP by the movement of hydrogen ions across a membrane during cellular respiration or photosynthesis.</span>
Answer:
pollen is important in fertilization because pollen carries male gamete and it helps in transportation of male gamete during fertilization in mainly gymnosperms and angiosperms.
