Answer the questions in brief.
(1). What is seed dispersal? Why is it necessary?
(2). Explain the process of insect pollination.
Answers
Answer:
1 Dispersal of seeds is very important for the survival of plant species. If plants grow too closely together, they have to compete for light, water and nutrients from the soil. Seed dispersal allows plants to spread out from a wide area and avoid competing with one another for the same resources.
The three primary parts of a seed are the embryo, endosperm, and seed coat. The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of stored food, consisting primarily of starches.
2 Insect pollination is crucial to most gardens and is as simple as insects like bees, butterflies and wasps flying from flower to flower in order to collect nectar. ... This fertilizes the flower and the plant will then grow seeds and the fruit around the seeds.
Insects typically pollinate flowers as they move from plant to plant searching for food. ... When an insect lands on a flower to feed, pollen grains stick to its body. As the insect moves to another flower of the same species, these pollen grains are transferred to the flower's stigma and pollination occurs.
Answer:
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