Class XI ยท Biology practice

Animal Kingdom MCQs

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Q321.

List-I (Feature) List-II (Group)
(a) Incomplete digestive systemi) Aschelminthes
(b) Complete digestive system with muscular pharynxii) Birds (Aves)
(c) Digestive tract with crop and gizzardiii) Platyhelminthes
(d) Mouth with a radula for feedingiv) Mollusca

[Animal-Kingdom] [class-xi]

Correct option: C   [ C ]

Remark: • Platyhelminthes: incomplete digestive system (single opening).
• Aschelminthes: complete alimentary canal with muscular pharynx.
• Birds: digestive tract with crop and gizzard.
• Mollusca: mouth with radula.
Q322.

List-I (Phylum) List-II (Segmentation)
(a) Poriferai) Metamerically segmented
(b) Annelidaii) Segmented
(c) Arthropodaiii) Unsegmented
(d) Molluscaiv) Absent

[Animal-Kingdom] [class-xi]

Correct option: A   [ A ]

Remark: • Porifera: segmentation absent.
• Annelida: metamerically segmented.
• Arthropoda: segmented body plan.
• Mollusca: generally unsegmented.
Q323.

List-I (Animal) List-II (Group)
(a) Spongillai) Osteichthyes
(b) Labeoii) Mollusca
(c) Pilaiii) Porifera
(d) Hirudinariaiv) Annelida

[Animal-Kingdom] [class-xi]

Correct option: C   [ C ]

Remark: • Spongilla: freshwater sponge (Porifera).
• Labeo (Rohu): freshwater bony fish (Osteichthyes).
• Pila: mollusc.
• Hirudinaria (leech): annelid.
Q324.

List-I (Term)List-II (Associated Group)
(a) Operculumi) Annelida
(b) Parapodiaii) Mammalia
(c) Mantle cavityiii) Osteichthyes
(d) Pinnaeiv) Mollusca

[Animal-Kingdom] [class-xi]

Correct option: A   [ A ]

Remark: • Operculum (gill cover) is a feature of Osteichthyes (bony fishes).
• Parapodia are lateral appendages in Annelida (e.g., Nereis).
• The mantle cavity, containing gills, is found in Mollusca.
• Pinnae (external ears) are present in Mammalia.
Q325.

List-I (Body Form)List-II (Example)
(a) Dorso-ventrally flattened bodyi) Ascaris
(b) Circular body in cross-sectionii) Taenia
(c) Umbrella-shaped body (Medusa)iii) Adamsia
(d) Cylindrical body (Polyp)iv) Aurelia

[Animal-Kingdom] [class-xi]

Correct option: D   [ D ]

Remark: • Taenia (tapeworm) is dorso-ventrally flattened.
• Ascaris (roundworm) is circular in cross-section.
• Aurelia (jellyfish) exhibits the umbrella-shaped medusa form.
• Adamsia (sea anemone) has a cylindrical polyp form.
Q326.

List-I (Common Name)List-II (Scientific Name)
(a) Sea urchini) Antedon
(b) Sea cucumberii) Ophiura
(c) Sea lilyiii) Echinus
(d) Brittle stariv) Cucumaria

[Animal-Kingdom] [class-xi]

Correct option: C   [ C ]

Remark: • Sea urchin: Echinus.
• Sea cucumber: Cucumaria.
• Sea lily: Antedon.
• Brittle star: Ophiura.
Q327.

List-I (Feature)List-II (Description)
(a) Dioeciousi) Development is through a larval stage
(b) Monoeciousii) Young ones resemble the adult
(c) Indirect developmentiii) Sexes are separate
(d) Direct developmentiv) Sexes are not separate (hermaphrodite)

[Animal-Kingdom] [class-xi]

Correct option: C   [ C ]

Remark: • Dioecious: sexes are separate.
• Monoecious (hermaphrodite): sexes not separate.
• Indirect development: involves a larval stage distinct from adult.
• Direct development: young resemble the adult.
Q328.

List-I (Common Name)List-II (Scientific Name)
(a) Fighting fishi) Pterophyllum
(b) Angel fishii) Hippocampus
(c) Sea horseiii) Exocoetus
(d) Flying fishiv) Betta

[Animal-Kingdom] [class-xi]

Correct option: C   [ C ]

Remark: • Fighting fish: Betta.
• Angel fish: Pterophyllum.
• Sea horse: Hippocampus.
• Flying fish: Exocoetus.
Q329.

List-I (Feature)List-II (Group)
(a) Pseudocoelomi) Annelida
(b) True coelom (first seen)ii) Aschelminthes
(c) Acoelomateiii) Chordata
(d) Post-anal tailiv) Platyhelminthes

[Animal-Kingdom] [class-xi]

Correct option: A   [ A ]

Remark: • Pseudocoelom: found in Aschelminthes.
• True coelom first appears in Annelida.
• Platyhelminthes are acoelomate.
• Post-anal tail: a fundamental characteristic of Chordata.
Q330.

List-I (Common Name)List-II (Scientific Name)
(a) Crowi) Psittacula
(b) Pigeonii) Neophron
(c) Parrotiii) Corvus
(d) Vultureiv) Columba

[Animal-Kingdom] [class-xi]

Correct option: B   [ B ]

Remark: • Crow: Corvus.
• Pigeon: Columba.
• Parrot: Psittacula.
• Vulture: Neophron.
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