Question

Write four characteristics of the organs in different terrestrial animals to absorb oxygen from the atmosphere.

Answer 1

All the creatures that live on land are terrestrial animals. So, all aquatic animals and certain birds can be excluded. Even if they can fly, most birds and insects are still considered terrestrial animals.

Complete answer:
In comparison to animals that live mostly on water, terrestrial animals spend most or all their life on land. Cats, ants, goats, raccoons, spiders, kangaroos, lions, lions, rats, beasts, oxens, leopards, elephants, and many more are examples of terrestrial animals. However, there are listed species that live underground. Rock-inhabitant species like saxicolous lichen are known as saxicolous. The animals that live in sand, e.g. arenicolous spiny lizards, are known as arenicolous. Some animals can live either in water or in the land, as turtles, crocodiles etc. are called amphibians.
Various terrestrial animals can absorb oxygen from the atmosphere by various respiratory organs. The characteristics of the organs in different terrestrial animals to absorb oxygen from the atmosphere are given below.

Simple unicellular organisms, such as Amoeba, are breathed through the cell membrane with the simple diffusion of gases. However, most animals have particular breathing organs.
Animals like earthworms that live in the ground use the skin to absorb air oxygen and to extract carbon dioxide. Thus, the earthworm's respiratory organ is the skin.
The small holes called spiracles of the body and air canals called tracheae are the respiratory organs of insects such as grasshopper, cockroach, housefly and mosquito.
Respiratory organs of terrestrial animals including humans, birds, lizards, dogs and frogs have lungs. But frogs can breathe by both lungs and skin.

Note: In comparison to arboreal species that live primarily in the trees, the term terrestrial is usually employed for species that live primarily on the land. Specific classes of terrestrial animals are even less common words. Rock dwelling are saxicolous animals. The sand is a habitat of arenicolous animals. Most of Troglofauna live in caves.