Question

Frogs can live both on land and in water, name the adaptations seen in these animals.

Answer 1

Hint: Frogs are members of class Amphibia. Amphibians are cold-blooded vertebrate animals surviving in a moist environment. They're ectothermic so they cannot regulate their body heat and rely upon sunlight to become warm and active.

Complete answer:
Frogs are amphibians animals so they can easily adapt themselves in water as well as on land. Due to their adaptability they possess different modes of respiration – cutaneous respiration, pulmonary respiration and buccopharyngeal respiration.

An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limbs folded underneath, and no tail. They have glandular skin, with secretions. Skin color varies from camouflaged dappled brown, grey to green and various patterns of bright red or yellow and black to show toxicity and ward off predators. They live in fresh water and on dry land as well. Few species are adapted for living underground or in trees.

Frogs typically lay their eggs in water. The eggs hatch into aquatic larvae called tadpoles that have tails and internal gills. They have highly specialized rasping mouthparts suitable for herbivorous, omnivorous or planktivorous diets. The life cycle is completed when they metamorphose into adults. A few species deposit eggs on land or bypass the tadpole stage.

Note: Many frogs have poisonous skin glands. These toxins do not provide protection from predatory mammals, birds, and snakes. Few of them camouflage; some blend with their backgrounds, while others change colors. Several species have bright colors on their underparts that flash when the frog moves, possibly confusing enemies or serving as a warning of the frog’s toxicity.