At what point in the plant life cycle does cell division convert diploid cells into haploid cells?
A) when the gametophyte produces gametes
B) when the sporophyte produces spores
C) when the egg and the sperm fuse to form a zygote
D) when the germinating spore grows to become the gametophyte
Correct Answer:
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Q20: In plants,the diploid stage of the life
Q23: A typical fertilizer contains no carbon, because
Q24: Water and nutrients are taken up from
Q25: After plant gametes fuse, they undergo mitosis
Q27: Fertilizers generally have three numbers on the
Q29: During pollination, pollen is moved from
A)endosperm to
Q30: Worldwide, more than 80 percent of the
Q31: Like other organisms, plants are composed of
Q32: Fertilizers, which contain a variety of nutrients,
Q33: Pollen is produced in the
A)ovules.
B)anthers.
C)endosperm.
D)cotyledon.
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