NEET Biology Structural Organisation in Animals MCQs Set 09

Practice MCQs for NEET Biology Animal Tissues

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Multiple Choice Questions

Question 1: Number of eggs contained in an ootheca of cockroach is
(a) 8
(b) 16
(c) 32
(d) 4
Show Answer & Explanation

Answer: (b) 16

Explanation:
1. Each ootheca of Periplaneta contains about 16 eggs in two rows of 8.

Teacher's Note:
1. 14-16 eggs.

Question 2: Conglobate organ is a part of male reproductive system of
(a) Prawn
(b) Cockroach
(c) Earthworm
(d) Frog
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Answer: (b) Cockroach

Explanation:
1. The conglobate gland (phallic gland) is part of the male reproductive system of cockroach.

Teacher's Note:
1. Male accessory gland.

Question 3: Number of ganglia in the abdominal nerve-cord of cockroach is
(a) 6
(b) 9
(c) 10
(d) 12
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Answer: (a) 6

Explanation:
1. The abdominal part of the nerve cord has six ganglia; the thorax has three and the head two nerve masses.

Teacher's Note:
1. Total nine ganglia.

Question 4: Which of the following structure is related to formation of middle layer of spermatophore in Periplaneta?
(a) Utriculi majores
(b) Utriculi breviores
(c) Ejaculatory duct
(d) Conglobate gland
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Answer: (c) Ejaculatory duct

Explanation:
1. The ejaculatory duct has a glandular lining that secretes the middle layer of the spermatophore.

Teacher's Note:
1. Spermatophore layers.

Question 5: Which of the following statement is incorrect about development of Periplaneta americana?
(a) On an average female produces 9-10 oothecae each containing 14-16 eggs
(b) The development is paurometabolous
(c) The nymph grows by mounting about 7-8 times to reach adult form
(d) The next to last nymphal stage has wing pads but only adult cockroach has wings
Show Answer & Explanation

Answer: (c) The nymph grows by mounting about 7-8 times to reach adult form

Explanation:
1. A cockroach nymph moults about 13 times, not 7-8, to reach the adult stage, so statement (c) is incorrect.

Teacher's Note:
1. Paurometabolous.

Question 6: The frog's body is divisible into
(a) Head, neck, abdomen
(b) Head, neck, trunk
(c) Head, trunk
(d) None of these
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Answer: (c) Head, trunk

Explanation:
1. The frog's body has two parts: head and trunk; it has no neck or tail.

Teacher's Note:
1. Tail is absent in adult.

Question 7: Which of the following is present in the skin of frog?
(a) Serous gland
(b) Mucus gland
(c) Chromatophore cells
(d) All of these
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Answer: (d) All of these

Explanation:
1. The frog's skin has serous (poison) glands, mucous glands and chromatophores.

Teacher's Note:
1. Moist skin.

Question 8: Which of the following vertebra is amphicoelous type in frog?
(a) 3rd
(b) 8th
(c) 9th
(d) 10th
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Answer: (b) 8th

Explanation:
1. The 8th vertebra of frog is amphicoelous; the 2nd to 7th are procoelous and the 9th is diplasiocoelous.

Teacher's Note:
1. Centrum shape.

Question 9: The digital formula for the hind limbs of frog is
(a) 0, 2, 2, 3, 3
(b) 2, 2, 3, 3, 3
(c) 2, 2, 3, 4, 3
(d) 0, 2, 1, 2, 3
Show Answer & Explanation

Answer: (c) 2, 2, 3, 4, 3

Explanation:
1. The hind limb has five toes with digital formula 2, 2, 3, 4, 3.

Teacher's Note:
1. Webbed.

Question 10: Frog is
(a) Homoeothermic
(b) Poikilothermic
(c) Homeostatic
(d) Warm-blooded
Show Answer & Explanation

Answer: (b) Poikilothermic

Explanation:
1. Frog is cold blooded (poikilothermic): body temperature varies with environment.

Teacher's Note:
1. Ectotherm.

Question 11: Capacity of amphibians to change colour is called
(a) Synchronous
(b) Metachronous
(c) Metachrosis
(d) None of these
Show Answer & Explanation

Answer: (c) Metachrosis

Explanation:
1. The ability to change colour is metachrosis.

Teacher's Note:
1. Chromatophores.

Question 12: Which is not true about frog?
(a) Salivary glands are absent
(b) Maxillary teeth are arranged along the margin of upper jaw and the lower jaw is toothless
(c) Muscular tongue is bilobed at tip and free from behind
(d) Tadpole larva of frog has a short alimentary canal
Show Answer & Explanation

Answer: (d) Tadpole larva of frog has a short alimentary canal

Explanation:
1. Tadpole is herbivorous with a long coiled alimentary canal, so a short canal is untrue.

Teacher's Note:
1. Adult frog is carnivorous with a short gut.

Question 13: Bidder’s canal in frog is present in
(a) Testes
(b) Kidney
(c) Ovary
(d) Brain
Show Answer & Explanation

Answer: (b) Kidney

Explanation:
1. Bidder's canal is a longitudinal tube along the kidney, receiving vasa efferentia.

Teacher's Note:
1. Kidney of male frog.

Question 14: How many lymph hearts are present in frog?
(a) Single
(b) One pair
(c) Two pairs
(d) Three pairs
Show Answer & Explanation

Answer: (c) Two pairs

Explanation:
1. Frog has two pairs of lymph hearts (anterior and posterior).

Teacher's Note:
1. Pumps lymph.

Question 15: The middle ear of Rana tigrina has
(a) Three ear ossicles i.e. malleus, incus and stapes
(b) One ear ossicle Columella Auris
(c) Two ear ossicles Columella Auris and stapedial plate
(d) No ear ossicle
Show Answer & Explanation

Answer: (b) One ear ossicle Columella Auris

Explanation:
1. The middle ear of Rana has a single ossicle, the columella auris.

Teacher's Note:
1. Tympanum outside.

Question 16: Cerebrum is the part of
(a) Forebrain
(b) Midbrain
(c) Hindbrain
(d) Rhombencephalon
Show Answer & Explanation

Answer: (a) Forebrain

Explanation:
1. The cerebrum is part of the forebrain.

Teacher's Note:
1. Forebrain, midbrain, hindbrain.

Question 17: Spawning is termed as
(a) Release of sperms in male
(b) Release of ova by female
(c) Other term for fertilization
(d) None of these
Show Answer & Explanation

Answer: (b) Release of ova by female

Explanation:
1. Spawning is the release of eggs (ova) by the female.

Teacher's Note:
1. Frogs spawn in water.

Question 18: Respiration in tadpole of frog takes place by
(a) Lungs
(b) Gills
(c) Buccal cavity
(d) Skin
Show Answer & Explanation

Answer: (b) Gills

Explanation:
1. Tadpole respires by external gills at first and later internal gills.

Teacher's Note:
1. Aquatic larva.

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Multiple Choice Questions (MCQs) for NEET Biology Animal Tissues

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