.png "Animal Kingdom MCQs for Class XI NEET 2025 & 2026 - Set I")
Q.1 An adult animal that possesses bilateral symmetry is most certainly also –
(1) triploblastic
(2) a deuterostome
(3) eucoelomate
(4) the product of metamorphosis
Q.2 Organisms showing radial symmetry would likely
(1) be good swimmers
(2) have rapid escape behavior
(3) move from place to place relatively slowly, if at all
(4) be able to fly
Q.3 An animal that does not have nerve or muscle tissue, is neither diploblastic nor triploblastic, is probably a
(1) flatworm (2) jelly
(3) comb jelly (4) sponge
Q.4 Which of the following is correctly associated with sponges?
(1) osculum
(2) body cavity
(3) cnidocytes
(4) muscle cells & nerve cells
Q.5 Which of the following is true of members of the phylum Cnidaria?
(1) They are not capable of locomotion because they lack true muscle tissue
(2) They are primarily filter feeders
(3) They have either or both of two body forms: mobile polyps and sessile medusae
(4) They may use a gastrovascular cavity as a hydrostatic skeleton
Q.6 Which of the following is a diploblastic phylum of aquatic predators?
(1) Cnidaria (2) Annelida
(3) Mollusca (4) Arthropoda
Q.7 Which phylum is characterized by animals that have a segmented body?
(1) Cnidaria
(2) Platyhelminthes
(3) Mollusca
(4) Arthropoda
Q.8 Which of the following is a shared characteristic of all chordates?
(1) scales
(2) jaws
(3) vertebrae
(4) dorsal, hollow nerve cord
Q.9 The endoskeletons of most vertebrates are composed of calcified –
(1) cartilage (2) silica
(3) chitin (4) dentin
Q.10 Differentiation of teeth is observed in
(1) sharks (2) bony fishes
(3) amphibians (4) mammals
Q.11 Which is characteristic of all mammals, and only of mammals?
(1) a four-chambered heart that prevents mixing of oxygenated and deoxygenated blood
(2) giving birth to live young (viviparous)
(3) parental care of offspring
(4) having glands to produce nourishing milk for offspring
Q.12 In which vertebrates is fertilization exclusively internal?
(1) chondrichthyans, osteichthyans, and mammals
(2) amphibians, mammals, and reptiles
(3) chondrichthyans, osteichthyans, and reptiles
(4) reptiles and mammals
Q.13 The figures (A - D) show four animals. Select the correct option with respect to a common characteristic of two of these animals.
(1) A and D respire mainly through body wall
(2) B and C show radial symmetry
(3) A and B have cnidoblasts for self- defence
(4) C and D have a true coelom
Q.14 To which classes do the following animals belong?
A-Petromyzon, B-Scoliodon, C-Pristis
(1) A-Cyclostomata, B-Chondrichthyes,C-Chondrichthyes
(2) A-Osteichthyes, B-Chondrichthyes, C-Chondrichthyes
(3) A-Osteichthyes, B-Chondrichthyes, C-Osteichthyes
(4) A-Osteichthyes, B-Chondrichthyes, C-Cyclostomata
Q.15 Which of the following group is formed of only the hermaphrodite organisms?
(1) Earthworm, tapeworm, housefly, frog
(2) Earthworm, tapeworm, sea horse, housefly
(3) Earthworm, leech, sponge, roundworm
(4) Earthworm, tapeworm, leech, sponge
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Answers:
(1) (1)
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(4) (1)
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(11) (2)
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(14) (1)
(15) (4)
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