Question

Find out the correct match.
A. Chelone, Chameleon, Calotes- epidermal scales.
B. Ornithorhynchus, Panthera leo, Macropus- Oviparous.
C. Exocoetus, Pavo, Psittacula, Columba- Forelimbs are modified into wings.
D. Scoliodon, Pristis, Pterophyllum- Placoid scales.

Answer 1

Hint: Animals are multicellular eukaryotic organisms. They are classified into two groups. These are Vertebrates and invertebrates. Vertebrates comprise five groups. These are fish, amphibians, reptiles, birds, and mammals. Invertebrates are subdivided into seven groups. These are Porifera, cnidaria, Platyhelminthes, Arthropoda, Annelida, Mollusca, and Echinodermata.

Complete answer:
Chelone sp. is a herbaceous plant. It is found in North America. Chelone belongs to the order Lamiales and family Plantaginaceae. These are perennial plants. These plants produce flowers in different colours like red, pink purple etc. Chameleons are considered as the old world lizards. It belongs to the Class Reptilia and family Chamaeleonidae. The superficial layer of the chameleon comprises specific pigments which are responsible for the colour changing characteristics of the chameleon. Calotes is a lizard that belongs to class Reptilia Family Agamidae. It involves uniform sizes of dorsal scales. So it is not the right match.
Ornithorhynchus is commonly known as the Platypus. It is an endangered mammal. It is the only living animal of the family Ornithorhynchidae. It is an egg-laying mammal. Panthera leo is commonly known as a lion. Sexual dimorphism is found in the lion. The lion is a mammal and belongs to the family Felidae. The Female gives birth to the baby. Macropus refers to the marsupial animals who carry their baby in the sac-like structure. Example: Kangaroo. Oviparous animals lay eggs. Example: hen. So it is not the right match
Exocoetus know as the flying fish. Thus bony fish comprises cycloid scales. It belongs to the class Actinopterygii. The pectoral fins of the fish are modified and enlarged. It is used as the wings. Pavo sp. Is the National Bird of India. It belongs to the class Aves, family Phasianidae. Forelimbs of Pavo are modified into wings. Psittacula is a parrot genus. It belongs to the family Psittaculidae. It comprises wings that are a modified form of forelimbs. Columba sp is the scientific name of pigeon. It comprises two wings which are modified from the forelimbs. So, option C shows those animals which possess wings. So it is the correct match.
Scoliodon is also known as a shark that belongs to the family Carcharhinidae. It comprises the Placoid scales on the body surface. Pristis belongs to the family of Pristidae. It comprises Placoid scales. The common name of Pterophyllum is angelfish. Placoid scales are not present in angelfish. So it is not the right match
So, the correct answer is “Option C”.

Note: wings are the locomotory organ of the birds. The forelimbs of the birds modified and formed the wing. Exocoetus comprises wings but they can’t fly like birds. They are capable of leaping out of the water by the use of the wings. Apart from birds, some mammals like bats and insects possess wings.