How do lower animals respire?Pls don't ans it from Google!
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Answer:
In simple unicellular animals like Amoeba, respiration takes place by the simple diffusion of gases through the cell membrane. Most of the animals have, however, specific organs for respiration. The animals like earthworms which live in the soil use their skin to absorb oxygen from air and remove carbon dioxide
Just like human beings, animals also breathe. Breathing is the process of inhaling oxygen and exhaling carbon dioxide. Few organisms have lungs in their chest cavity which helps them to breathe. The organisms like earthworms and a few unicellular organisms have no specialized organs for breathing and breathe through the body surface.
Breathing in Lower Organisms
The lower organisms breathe through the cell membrane by the diffusion of gases. All the minute organisms like amoeba and paramecium have no specialized organ for breathing. So, the gases are diffused by the cell membrane. Hydra breathes through the moist surface of the body.