Question

3. Name the conditions necessary for germination.
4. Why must seeds be dispersed? What are the different agents of dispersal?​

Answer 1

germination is depend on both conditions 1.internal and 2.external conditions

Answer 2

Answer:

3.Seed germination is the development of a seed into a seedling. The changes that occur during seed germination include absorption of water through mi-cropyle, bursting of testa, and emerging and elongation of the radical.Seed germination depends on both internal and external conditions. The most important external factors include right temperature, water, oxygen or air and sometimes light or darkness. Various plants require different variables for successful seed germination.

4.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. 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.

Explanation:

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