________ is usually present in the vegetative structures,
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gametesNatural vegetation
There is no fusion of two reproductive cells called ________.
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germination
Hypogeal ________ where the cotyledons remain below the surface of the soil.
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pollen
The ________ moves down the ________ tube to the ovule.
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Define asexual reproduction.
It is the "production of new individuals" that does "not involve fertilization", i.e no fusion of two gametes.
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What is natural vegetation?
It is a form of "asexual reproduction", involving the "growth of a new daughter plant" from any part of an old plant.
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Mention a few advantages of natural vegetation.
Advantages of natural vegetation are:
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Mention a few disadvantages of natural vegetation.
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Define sexual reproduction.
It is the "fusion" of special cells called "gametes".
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What is the role sepal in a flower?
It is the "modified leaves" which enclose and "protect the other parts of the flower" in the bud stage.
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What is the role of petal in a flower?
They are the modified parts of the flower, They have two important roles; they are brightly coloured to "attract insects for pollination" and they provide a "landing platform for insects".
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What is the role of stamen in a flower?
It is the male part of the flower, its man role is to "produce pollen grains".
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What is the role of carpel in a flower?
It consists "ovary".
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What is meant by pollination?
It is the "transfer of pollen grains" from the "anther to the stigma".
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How are flowers pollinated by insects?
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How are flowers pollinated by wind?
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How does fertilization occur in flowers?
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What are the features of wind dispersed seeds?
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What are the features of animals dispersed seeds?
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What are the features of water dispersed seeds?
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Define germination.
It is the process during which the "food reserves present in a seed are broken down" and the "embryo starts to grow into a plant".
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