Breathing organs in dolphin.

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Solution

Some sea animals, such as dolphins or whales do not have gills to breath in oxygen.
They have lungs.
They also have blowholes, located on the upper part of their head.
They have to come to the water surface to breath in air through the blowholes.
Thus, breathing organs in dolphin are Lungs.

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Q. An organism X having breathing organs A lives on land. When organism X goes under water, it cannot survive for a long time unless carrying an oxygen cylinder. On the other hand, the organism Y having breathing organs B always lives in water and if taken out of water, it dies after a short while. A third organism Z having breathing organs C and D which lives on the banks of ponds, lakes and rivers can survive on land as well as in water equally well.
(a) What could organism X be? Name the breathing organs A.
(b) What could organism Y be? Name the breathing organs B.
(c) What could organism Z be? Name the breathing organs C and D.
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Match the following:
$\begin{matrix} Animals & Breathing organs 1. & Dolphin & A. & Lungs 2. & Human & B. & Skin 3. & Fish & C. & Blowhole 4. & Earthworm & D. & Gills \end{matrix}$

Q. Dolphins and whales have gills to breathe in water.

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Breathing organs in dolphin.

Some sea animals, such as dolphins or whales do not have gills to breath in oxygen.They have lungs.They also have blowholes, located on the upper part of their head.They have to come to the water surface to breath in air through the blowholes.Thus, breathing organs in dolphin are Lungs.

Some sea animals, such as dolphins or whales do not have gills to breath in oxygen.
They have lungs.
They also have blowholes, located on the upper part of their head.
They have to come to the water surface to breath in air through the blowholes.
Thus, breathing organs in dolphin are Lungs.