Question

6. How do these respire?
Amoeba, earthworm, snake, fish, aquatic plants and frog​

Answer 1

Required Answer:-

• Amoeba:

– Amoeba is a unicellular organisms consist of a single cell. Amoeba respire by diffusion process. It is present in water bodies like lakes, ponds etc.

• Earthworm:

– Earthworm do not have lungs like other animals to respire. They respired through thin skin.

• Snake:

– Snakes respire throught the contraction and relaxation of the muscles between the ribs.

• Fish:

– Fish do not have lungs. It has the special organ for respiration called gills. They also have the organ called gill slit.

• Aquatic plants:

– Aquatic plants get air in through special designed stems. They allows CO2 enter in plants.

• Frog:

– Frog is an aquatic animal which respired through its skin. Frog has thin skin which allows the exchange of gases.

Answer 2

☈ Answers :-

➞Amoeba

• Ameoba is a unicellular organism. It depends on simple diffusion of gases for breathing. The process of respiration continuously produces carbon dioxide that diffuses out through the membrane of Amoeba into the surrounding water.

➞Earthworm

• Earthworms do not have specialized respiratory organs like we do; instead, they take in oxygen and expel carbon dioxide directly through their skin. Oxygen diffuses through the earthworm's body surface and diffuses inward to the network of capillaries lying just under the body surface.

➞Snake

• Snakes have nostrils, just like humans, and they breathe through them and use them to smell. However, their best sense of smell comes from using their tongue, and they can also breathe through their mouths, like humans, by using their glottis.

➞Fish

• Fish breathe with their gills, and they need a constant supply of oxygen. Gills sit under the operculum. This is called the gill slit.