Question

Choose the correct option.

Answer 1

Amphibians are the organisms that have smooth, sticky, moist, and porous skin for performing various functions, while reptiles are the organisms that have dry, hard and scaly skin. It guards them in harsh conditions. Amphibians lay their eggs which are covered with gel, in water, whereas reptiles lay their eggs which have a hard protective shell, on land.

Complete answer:
- Amphibians are vertebrates who need water (or a moist environment) to survive. These include frogs, toads, salamanders, and ichthyophis. All amphibians can breathe and absorb water through their thin skin.
-Hyla tree frog genus belongs to the class amphibia and family Hylidae. More than 300 species of Hyla are found in Europe, Asia, Africa, and America.
-Balaenoptera is a genus of whales which belongs to the class Mammalia. It is a diverse genus, and it comprises species in its family except for the humpback whale (Megaptera novaeangliae).
-Flying fox belongs to the genus Pteropus. It is a genus of megabats which includes the largest bats in the world. They are commonly called fruit bats or flying foxes.
-Ancylostoma is a genus of nematodes which includes species of hookworms such as Ancylostoma duodenale.
-Nereis belongs to annelids. It is a genus of polychaete worms in the family Nereididae. It contains many marine species.

So, the correct answer is option A.

Additional Information:
The term 'amphibian' is derived from the Ancient Greek word amphíbios that means 'both kinds of life'. This term was first used as a general adjective for animals that could live on land as well as in water, including seals and otters.

Note: Ichthyophis is considered to be an amphibian because they live underground, burrowing through loose soil and ground litter. They have long and streamlined bodies. Caecilians are limbless amphibians that resemble a worm or a snake.