Question

Which among the following organisms belong to Aves?
(a) Turtle
(b) Bat
(c) Owl
(d) Human

Answer 1

Hint: Aves is a class of vertebrates that comprises the birds' species. Birds are egg-laying animals, having fur, two legs, and are endothermic. They are found worldwide, and their size ranges from 5 cm (bee hummingbird) to 2.75 m (ostrich).

Complete answer:
Owl are the organisms that belong to the Aves as they have those characteristics that are found in the members of the class Aves. Its classification is as follows:
Kingdom - Animalia
Phylum - Chordata
Class - Aves
Order - Strigiformes
Family - Strigidae
Genus - Strix
1. Birds are bipedal feathered and warm-blooded (homoiothermic) animals that help in maintaining constant body temperature. Their fore-limbs are modified into wings. Most birds can fly except flightless birds (e.g., Ostrich). Class Aves has about 9000 species.
2. The hind-limbs are helpful for performing various functions that include walking, perching, swimming, etc., and have varying numbers of toes from two to four.
3. They undergo double respiration where the lungs and air sacs are connected for enough supply of oxygen.
4. The beak constitutes the upper and lower jaws where the teeth are absent. Different types of beaks are found that are adapted based on the feeding habits of the birds.

So, the correct answer is ‘owl’.

Note:
Birds are the largest group among the tetrapod classes that have the largest number of species. Birds can be easily adapted all around the earth’s habitat that includes about 10,000 living species of modern birds. The beaks of the birds are of different types that include wood-chiseling, fish-tearing, seed-crushing, fruit-scooping, grain-pickling, nectar-sipping, etc.