Question

. Write short answer
a) For which functions does the modification of root occurs? Write
with examples.
b) What are the plants that store food by modifying stem. Write
examples.
c) In how many ways are seeds dispersed? Write them.
d) What is the source of nutrients for germinating seed?
e) New seed does not germinate in spite of suitable environment. Why?​

Answer 1

Explanation:

(e) This can be due to the fact that dormancy facilitates that germination only takes place at the optimal moment, in spite of changes in the environment, due either to weather phenomena, or whether due to the fact that the seeds reach a new location after dispersal.(d) =Inside of the seed coat, an embryo is protected. The embryo is an immature plant with all of the parts of an adult plant. The seed is filled with nourishment for the new plant; this source of nutrition is called the endosperm.(c) =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.(b)=For food storage: Rhizome (ginger), Tuber (potato), Bulb (onion), Corm (colocasia).

For support: Stem tendrils of watermelon, grapevine, cucumber.

For protection: Axillary buds of stem of citrus, Bougainvillea get modified into pointed thorns.