Question

9. Write down the morphologi

cal features of Frog.
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Answer 1

Answer:

An adult frog has a stout body which is differentiated into head and trunk. Other external features are a pair of nostrils, protruding eyes, a membranous tympanum (ear), slippery/warty moist skin and webbed limbs.1) They are poikilotherms or cold blooded meaning that their body temperatures change with that of the environment. 2) A frog has both lungs as well as skin for breathing. 3) They have the presence of webbed feet, which help them to swim. 4) There are long and strong hind limbs for leaping and catching their prey.

Answer 2

• Despite the fact that their larvae have tails, adult frogs are tailless.
• A sturdy body separates the head and trunk of an adult frog.
• Other external features include a pair of nostrils, protruding eyes, a membrane tympanum (ear), slippery/warty moist skin, and webbed limbs.
• Frogs' skin is smooth and porous, allowing them to absorb water and breathe. The moist skin of frogs serves as a breathing organ.
• In addition, the skin is glandular in nature, releasing mucus and toxic substances in order to warn predators.
• The skin colour can range from brown to green to vivid colours, depending on the secretions.
• Frogs move about using their forelimbs and hindlimbs.
• Although they are unisexual, frogs are sexually dimorphic.
• A male frog may be distinguished from a female frog by the presence of vocal sacs and a copulatory pad on the forelimbs.