Question

Identify the animal group having:
Bones that are light and hollow.

Answer 1

Hint: Biosphere is a common factor which refers to the biodiversity of the world where we are also included. It has various objectives of having a healthy succession. It includes- plants and animals majorly how well animals are combined and sustaining or co-existing with the human world. Biodiversity is a variety of different organisms discovered over a million years ago. There are a variety of factors which include the destruction of succession like- wildfire, unwanted species which causes harmful impacts to succession.

Complete answer:
Animal groups which had Bones lighter and hollow are known as Birds. So, birds are basically emerged from aerial characters possessing animals. Birds are unique out of all the terrestrial animals. Birds develop the feathers from their ancestors. Their ancestors belong to the Mesozoic era. Birds also have a close connecting link with reptiles. Particularly dinosaurs. Some dinosaurs have the ability to fly.
Birds have bones which are light and hollow; the bones of birds lack high density, they possess low density as it would help them to fly. To attain a stress-free smooth flying bird, have lighter bones. Their sternum is denser than other bones. Feathers do not have any bones. Birds have strong muscles; their muscles have high capacity than other organisms.

Note:
Birds as we discussed have hollow bones and these bones are called-pneumatized bones. The reason why birds have hollow bones is because of course it helps in flying but also it helps in in-taking greater amounts of oxygen during flight. As because air sacs are attached to the hollow bones. Rest all their bones are filled with bone marrow. Their beak is strong and it helps in taking and catching prey.