Subjective Type Questions
5. Answer the following.
(a) What is germination?
(b) What is seed dispersal?
(c) Name the different ways plants disperse seeds, giving examples of each.
(d) How do animals help in seed dispersal?
(e) How is water helpful in seed dispersal? Give examples.
(1) Do humans also help in seed dispersal? How? Give an example.
Answers
Answer:
Germination Definition. Germination refers to the process by which an organism grows from a seed or a spore. The most common forms of germination include a seed sprouting to form a seedling and the formation of a sporeling from a spore. Thus, germination occurs primarily in plant and fungal species.
Seed dispersal is the movement, spread or transport of seeds away from the parent plant.
There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals. Some plants are serotinous and only disperse their seeds in response to an environmental stimulus. Answer: Explanation: wind water animals and explosion of fruit.
Animals can disperse seeds by excreting or burying them; other fruits have structures, such as hooks, that attach themselves to animals' fur. Humans also play a role as dispersers by moving fruit to new places and discarding the inedible portions containing the seeds.
Explanation: Explanation:Plants which grow beside water often rely on water to transport their seeds for them. They may produce light seeds which float, or there may be fluff that helps buoyancy. ...
The movement of seed from one place to other this called dispersal of seeds. 1) Yes humans helps in dispersal. Humans eat various fruits and vegetables and throw their seeds after eating. These seeds when get adequate condition for germination, grows to become plants
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