Classes of Animals MCQs with Answers

One-liner

The glossopharyngeal (IX) nerve in dogfish supplies both the buccal cavity and pharynx as well as the tongue and pharyngeal muscles.

One-liner

Eggs in Culex mosquitoes are boat-shaped and are laid in clusters called "rafts" that float on water surfaces.

One-liner

The modern classification system recognizes six kingdoms of living organisms.

One-liner

The excretory tubes found in each segment of annelids that collect fluid directly from the coelom are called metanephridia.

One-liner

Respiration by means of gills in fishes is called bronchial respiration.

One-liner

In deuterostome development, the blastopore becomes the anus.

One-liner

Freshwater fishes are hyperosmotic, meaning their body fluids have a higher solute concentration than the surrounding water.

One-liner

The male cockroach can be distinguished from the female by the presence of anal styles, which are small, unjointed, thread-like appendages on the 9th abdominal segment.

One-liner

Among the given options, fishes exhibit a pronounced level of polyploidy, especially in groups like sturgeons, salmonids, and cyprinids.

One-liner

Phylum Chordata is divided into three subphyla: Urochordata, Cephalochordata, and Vertebrata.