The pollen grain is actually the male gametophyte generation of seed plants. Inside the anther, pollen mother cells divide by meiosis to form pollen grains whose nuclei contain half the number of chromosomes characteristic of the parent plant.
(hope that helped answer the question)
A person had
her tonsils removed and developed throat cancer. The two events are related
because the tonsils contain lymphocytes that may have killed the cancer cells Tonsils
are made up of soft tissues. Tonsils are located near the throat.
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15. What's the requirement of every single natural process on Earth?
answer: Energy source
If I'm not mistakened, the answer is D
Hope this helps :)
All accept for “in some cultures there’s an increased risk for certain diseases” and “the populations live at extreme altitudes” because both of these statements do not relate to cultural values
