State reasons for the following:
Q. State reasons for the following:
(a) Tapeworm does not have digestive trait.
(b) Frogs use both skin and lungs for breathing.
(c) Birds have pneumatic/hollow bones.
Ans.
(a) Because tapeworm is an intestinal parasite and thus, can directly absorbs the digested food from the host animal across its body wall.
(b) Frogs can breathe with the help of moist skin when they are in water whereas lungs help in breathing when they are on land or swimming at the surface.
(c) This makes their body light weight and help in easier flying (it’s a flight adaptation).
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