Question

11.Give one example each of Khan and Rabi Crops
12.Mention one method by which living organisms influence the formation of soil
13
Answer the following questions
(a) Dry apricot are left for some time in pure water and later transferred to sucar
solution. When placed in pure water, drypricots swell up. On being transferred to
sugar solution, they shrink which processes lead to swelling and shrinking?
(b) A red blood cellis kept in concentrated salt solution. What changes happen in
the appearance of RBCS?
(c) What will happen when the plasma membrane of a cell breaks down?
(d) What happens when the Golgi apparatus is removed from the cell?
14.After recovering from infection of ringworm, Reena thought that all fungi are
harmful for human kind, as these spoil food and cause various diseases. But her
elder sister told him that not all fungi are harmful, some are quite useful such as in
making bread, medicines (antibiotics) and in decomposing organic wastes.
(a) Name any fungus which is used in bread making
(b) Name any fungus which is the source of some medicine
(c) Name the fungus we eat as vegetable
(c) What ecological benefit is shown by fungi?
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Answer 1

Answer:

11.ans

Explanation:

kharif crops are grown in rainy season like paddy, maize extra these crops are called kha

kharif crops

Rabin crops are grown in winter season like gram, wheat extra these crops are called rabi crops