Which of the choices below best describes the phrase "double fertilization" in angiosperms? A pollen grain contains two sperm cells, and each of these sperm fertilizes a separate egg. Two sperm cells fertilize the same egg cell. One sperm from a pollen grain fertilizes an egg, and a second sperm cell fertilizes another cell to produce endosperm. Each angiosperm has two ovules in each flower, and one sperm is needed to fertilize each. Two pollen grains land on the same stigma. True or false? In vascular plants the gametophyte is larger, longer-lived, and more self-sufficient than the sporophyte. True False
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Which of the choices below best describes the phrase -double fertiliza.docx
1. Which of the choices below best describes the phrase "double fertilization" in angiosperms? A
pollen grain contains two sperm cells, and each of these sperm fertilizes a separate egg. Two
sperm cells fertilize the same egg cell. One sperm from a pollen grain fertilizes an egg, and a
second sperm cell fertilizes another cell to produce endosperm. Each angiosperm has two ovules
in each flower, and one sperm is needed to fertilize each. Two pollen grains land on the same
stigma. True or false? In vascular plants the gametophyte is larger, longer-lived, and more self-
sufficient than the sporophyte. True False
