Everyday Science · Zoology & Animal Kingdom · page 13 of 46

Classes of Animals MCQs with Answers

Includes 25 past paper MCQs (marked).

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Classes of Animals MCQs (121–130)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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121.
Spiders do not have _?
Correct Answer: C. Wings
One-liner
Spiders do not have wings; they belong to the class Arachnida, which is characterized by the absence of wings.
122.
Ray-finned fishes are present in which class?
Correct Answer: C. Osteichthyes
One-liner
Ray-finned fishes belong to the class Osteichthyes, which comprises all bony fishes.
123.
Metamorphosis in insects includes the stages larva, pupa, and _?
Correct Answer: B. Adult
One-liner
Metamorphosis in insects includes the stages larva, pupa, and adult.
124.
Past Paper MCQ
Which of the following are paired fins in fishes?
Correct Answer: C. Pectoral & pelvic fins
One-liner
The paired fins in fishes are the pectoral and pelvic fins, which occur in pairs on either side of the body.
125.
Which one of the following is a homeothermic animal?
Correct Answer: C. Kangaroo
One-liner
Kangaroo is a homeothermic (warm-blooded) animal, meaning it can maintain a constant internal body temperature regardless of the external environment.
126.
Mammals are those animals that give birth to their young ones and feed them on milk. Which one of the following is not a mammal?
Correct Answer: C. Ascaris
One-liner
Ascaris is not a mammal; it is a parasitic roundworm belonging to the phylum Nematoda.
127.
Canal system is a characteristic of?
Correct Answer: D. Porifera
One-liner
The canal system is a characteristic feature of Porifera (sponges), which use it for water circulation, feeding, and respiration.
128.
Corals are the members of phylum?
Correct Answer: B. Cnidaria
One-liner
Corals belong to the phylum Cnidaria, which also includes jellyfish, sea anemones, and hydra.
129.
Hydrostatic skeleton is found in ?
Correct Answer: D. Earthworm
One-liner
Hydrostatic skeleton is found in earthworm.
130.
The most complex exoskeleton is found among _?
Correct Answer: B. Arthropods
One-liner
The most complex exoskeleton is found among arthropods.

Previous chapter: Types of Plants & Fungi Next chapter: Animal Classification by Feeding & Behaviour

Classes of Animals MCQs with Answers

Classes of Animals MCQs (121–130)

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