Breathing in Other Animals

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. Let us have a brief insight into the breathing in other animals.

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.

Breathing in Earthworms

The earthworms breathe through their skin. This is known as the cutaneous mode of respiration. They secrete slimy secretions on the skin which keeps it moist. This makes their body permeable to gases.

Also read: Mechanism of Breathing

Breathing in Insects

The body of the insects is covered with holes called spiracles. The oxygen enters these holes and reaches the trachea which helps them to circulate throughout the body. The carbon dioxide is carried by the trachea and expelled out through the spiracles.

Breathing in Fish

Fish are aquatic organisms. They have special organs called gills that help in breathing. These are covered with gill slits. The fish takes water through the mouth and expels it through the gills. During this process, the oxygen is absorbed by the blood vessels and is transported to different cells of the body.

The rate of breathing in water is more than that on land. This is because the amount of oxygen present in water is less when compared to that outside. Therefore, higher breathing rate helps them to take more oxygen.

Breathing in Frogs

A frog lives both on land and in water. Therefore, it exhibits different modes of breathing during different stages of its life cycle. It exhibits three different respiration modes:

  • Cutaneous
  • Branchial
  • Pulmonary

The skin of the adult frogs is moist and slimy which helps them to respire in water and on land. On land, the exchange of gases in the adult frogs takes place through the lungs. The larval stages of frogs live in water and breathe through gills.

This is how different animals breathe and have the breathing organs modified according to the habitat they live in.

Also read: Major Differences Between Breathing and Respiration

For more information on Breathing in Other Animals, visit Byju’s app.

Breathing in Other Animals How does Breathing in Other Animals Occur? Breathing is important for animals to carry out various life processes. There are various modes of breathing adapted, such as gills in fish and tadpoles, lungs in frogs, spiracles in insects, skin in earthworms and cell membrane in lower animals.


Practise This Question

Which of the following donor-recipient combinations during blood donation will cause agglutination?