Respiration in Animals
Respiration in Animals
In Animals- All animals need to respire, be it a cockroach a fish or an elephant. earthworms take in air through their skin surface the skin is kept moist with the help of a substance called mucous oxygen of the air gets directly absorbed through the moist skin a carbon dioxide is given out
In Aquatic Animals And Plants- Most aquatic animals like fish, tadpole crab and shrimp have special organs for respiration called gill. Gills help to take in oxygen and give out carbon dioxide. Some animals that live in water, e.g. whales come up to the water surface to breathe in oxygen from the air. Others, for example, fish, breathe in oxygen dissolved in water. Fishes have organs called gills, instead of Lungs. When water passes through the gills, oxygen dissolved in the water is absorbed..
In Amphibians –Amphibians like frog and salamander need breathing systems for both air and water. Frogs have well developed lungs to breathe in air when on land in water, frogs breathe with the help of their moist skin.
In Birds-Birds have a pair of lungs with air sacs that remain open all the time, so that air can easily pass through them.
Which of the following are correct : (a) Amphibians like frog and salamander need breathing systems for both air and water. (b) Frogs have well developed lungs to breathe in air when on land in water, frogs breathe with the help of their moist skin. (c) the tadpole stage of frog can respirate with the help of gills. | |||
| Right Option : D | |||
| View Explanation | |||
Frog can respirate through _____________. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) Most aquatic animals like fish, tadpole crab and shrimp have special organs for respiration called gill. (b) Amphibians like frog and salamander need breathing systems for both air and water. | |||
| Right Option : C | |||
| View Explanation | |||
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