how do you appreciate the role of amniotic sac in embryonic development
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5
Answer:
it provides nutrition to the newborn as well as helps in removal of waste from foetus..
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2
Answer:
Composite fish culture :- Rearing & caring of different fishes in one pond only.
*Limitations :-
1) Some fishes rear only during particular monsoon.
2) Difficult to recognize which seed belongs to which of the species.
3) Lack of availability of good quality seeds.
*Ways to solve limitations :-
1) Use hormonal stimulation , to breed fishes.
2) And,make sure the supply of pure fish seeds and that too in desired quantity.
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