- Books Name
- CBSE Class 7 Science Book
- Param Publication
- CBSE Class 7
Breathing in Other Animals
• Animals such as elephants, lions, cows, goats, frogs, lizards, snakes, birds have lungs in their chest cavities like the human beings.
• Respiration in insects: A cockroach has small openings on the sides of its body. Other insects also have similar openings. These openings are called spiracles. Insects have a network of air tubes called tracheae for gas exchange. This type of respiration is called tracheal respiration. Oxygen rich air rushes through spiracles into the tracheal tubes, diffuses into the body tissue, and reaches every cell of the body. Similarly, carbon dioxide from the cells goes into the tracheal tubes and moves out through spiracles. These air tubes or tracheae are found only in insects and not in any other group of animals.
• Respiration in Earthworm: Earthworms breathe through their skin. This is called cutaneous respiration.The skin of an earthworm feels moist and slimy on touching. Gases can easily pass through them. Though frogs have pair of lungs like human beings, they can also breathe through their skin, which is moist and slippery by the process of diffusion.
Breathing in other animals
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.
Animals intake oxygen and release carbon dioxide. It is also known as breathing. This is mainly two phases.
Inspiration: It is the process by means of which oxygen is taken to the lungs.
Expiration: During expiration, carbon dioxide is expelled out from the respiratory organs into the environment.