Question

In frog webs are present in between
A. Fingers of forelimbs
B. Toes of Hind limbs
C. Both A and B
D. None of the above

Answer 1

Hint: The frog is the amphibious animal which lives on land and water, their life cycle shows that their larval or tadpole stage live in water until they fully develop into a mature individual, which can live in water and land as well, frog show cutaneous respiration. Frog possesses some special adaptive features that help them to live in both environments.

Complete answer:
Frog possesses some adaptive feature that helps to survive in both environments, such as cutaneous respiration, interdigital webbing. In frogs, the hind limbs are much stronger than the forelimb and help in the long jump to escape the predator in one go. The hind limb consists of the proximal thigh, the middle shank, long ankle with a foot that bear five toes, the toes are connected with a web-like structure which is a thin membrane. The first toe is known as the hallux. Such web-like feet help to swim in the aquatic environment.

Frog is a carnivorous animal and shows sexual reproduction and lays eggs on aquatic plants or in water which help to protect the eggs from predators, frogs show different stages of life cycle starting from eggs, tadpole, metamorphosis and the adult frog. During the frog life cycle, different stage possesses a different feature which helps to live inside the water and land, as in tadpole stage, tadpole bear gills and tail which help breath and motion in the water, after the tadpole stage metamorphosis occur, during this phase tadpole start develop into an adult frog by shedding tail and other features.

Hence, the correct answer is option (B).

Note: Frog belongs to phylum Chordata and class amphibian of the kingdom Animalia. The classification of class amphibian into three orders such as
Order-1, Apoda- limbless with scale eg- blindworms.
Order-2, Urodela- tail present eg- salamander.
Oder- 3 Anura, without a tail, eg- common frog.