Test: Animal Kingdom 5 - From Past 28 Years Questions - NEET MCQ

Class Cephalopoda of the phylum Mollusca has eyes well developed and resemble vertebrate eyes e.g., Octopus, Sepia etc.

Star fish belongs to the class – Asteroidea.

Jaw apparatus is called Aristotle’s  Lantern which is present in the Class Echinoidae of the Phylum Echinodermata.

Rana tigrina – Bull frog; Order - Anura Amphibia.

The number of cervical vertebrae are same in man & whale that is 7 in number.

 Diaphragm is present in mammals as a muscular seperator between thorax and abdominal region.

Gorilla, Chimpanzee, Monkeys and Man belongs to same order- Primates of class mammalia.

Mucus helps frog in forming moist skin as it is necessary for cutaneous respiration during hibernation of frog.

A larval stage occurs in the life history of butterfly, frog and mosquitoes.

Tracheal tube of cockroach and human have non-collapsable wall. Each tracheal tube is lined with cuticle which prevents collapsing.

Wuchereria – Filariasis

Budding is an asexual mode of reproduction in Hydra & sponges. Bud is formed as an outgrowth on the body surface, then detached to form new animal.

Nerve cells are present in the form of network of neurons in Hydra but the brain and nerves are absent.

Rostellum and hooks are absent in Taenia saginata.

Hirudinaria (leech), does not possesses setae or parapodia for locomotion. Its posterior sucker helps in locomotion

Ostrich, Kiwi, Penguin are all flightless birds.

In radial symmetry – body is cut longitudinally through any radius into two equal halves. Present in sessile animals i.e. star fish that live in the sea bottom.

Coelom or body cavity, when derived from blastocoel is pseudocoelom as in nematodes, rotifers. In this type of cavity, mesoderm is lined by only one side i.e., towards the body wall. Schizocoel is true coelom derived from mesodermal segments.

Presence of nematocysts or stinging cells are the characteristic feature of the phylum Coelenterata. It serves the  function of offence and defence by producing toxin to kill the prey & enemy.

Sea anemone (Adamsia) is marine animal attached to the empty shell of gastropods occupied by hermit crab. They live as symbionts, not as parasites.

Schistosoma (Blood fluke) – Platyhelminthes Trypanosoma – Aschelminthes Wuchereria – Aschelminthes Plasmodium – Protozoa

Cockroach & snail has open type of circulatory system.
Closed type of blood circulatory system occurs in cuttlefish.

Tube feet is the locomotory  organ that occur in star fishes

All chordate possess : —  Notochord at some stage of life —  Dorsal tubular nervous system —  Pharyngeal gill slits at same stage of life cycle.