Class XI · Biology practice

Animal Kingdom MCQs

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Q81.

Parapodia are associated with which phylum?

[Animal-Kingdom] [class-xi]

Correct option: B   [ Annelida ]

Remark: Explanation: Parapodia are lateral appendages found in aquatic annelids like Nereis, which assist in swimming.
Q82.

Comb plates are the characteristic feature of:

[Animal-Kingdom] [class-xi]

Correct option: A   [ Ctenophora ]

Remark: Explanation: Comb plates are rows of cilia used for locomotion and are the characteristic feature of the Phylum Ctenophora.
Q83.

Choanocytes are found in:

[Animal-Kingdom] [class-xi]

Correct option: D   [ Porifera ]

Remark: Explanation: Choanocytes, or collar cells, are flagellated cells that line the spongocoel and canals in sponges (Phylum Porifera).
Q84.

In non-chordates, the central nervous system is:

[Animal-Kingdom] [class-xi]

Correct option: B   [ Ventral, solid, and double ]

Remark: Explanation: In non-chordates, the central nervous system is located on the ventral (belly) side, is solid, and is double.
Q85.

Pharyngeal gill slits are present in:

[Animal-Kingdom] [class-xi]

Correct option: A   [ Chordates only ]

Remark: Explanation: A pharynx perforated by gill slits is a fundamental characteristic of chordates. Gill slits are absent in non-chordates.
Q86.

Ascaris (Roundworm) belongs to which phylum?

[Animal-Kingdom] [class-xi]

Correct option: C   [ Aschelminthes ]

Remark: Explanation: Ascaris, the common roundworm, belongs to the Phylum Aschelminthes.
Q87.

Which of the following is NOT an arthropod?

[Animal-Kingdom] [class-xi]

Correct option: D   [ Cuttlefish ]

Remark: Explanation: The cuttlefish (Sepia) belongs to the Phylum Mollusca. Locusts, scorpions, and prawns are all examples of arthropods.
Q88.

Pila (Apple snail) belongs to the phylum:

[Animal-Kingdom] [class-xi]

Correct option: C   [ Mollusca ]

Remark: Explanation: Pila, the apple snail, is a member of the Phylum Mollusca.
Q89.

Asterias (Star fish) is an example of:

[Animal-Kingdom] [class-xi]

Correct option: B   [ Phylum Echinodermata ]

Remark: Explanation: Asterias, the star fish, is a common example from the Phylum Echinodermata.
Q90.

Balanoglossus is an example from which phylum?

[Animal-Kingdom] [class-xi]

Correct option: D   [ Hemichordata ]

Remark: Explanation: Balanoglossus is an example of a worm-like marine animal from the Phylum Hemichordata.
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