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Animal Kingdom

NEET Biology · 79 questions · Page 8 of 8 · Click an option or "Show Solution" to reveal answer

Q71
Which one of the following categories of animals, is correctly described with no single exception in it?
A All sponges are marine and have collar cells.
B All mammals are viviparous or ovoviviparous and possess a diaphragm for breathing.
C All bony fishes have four pairs of gills and an operculum on each side.
D All reptiles possess scales, have a three chambered heart and are ectothermic.
Correct Answer
Option A
Solution

(a) All sponges are marine and have collared cells without any exception.

Q72
The characteristics of class Reptilia are:
A Body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears
B Body covered with moist skin which is devoid of scales, the ear is represented by a tympanum
C Fresh water animals with bony endoskeleton, air-bladder to regulate buoyancy
D Marine animals with cartilaginous endoskeleton, body covered with placoid scales
Correct Answer
Option A
Solution

(a) In option (a), all the characteristics belong to class Reptilia.

Q73
Match the name of the animal with one characteristic and the phylum/class to which it belongs
A Ichthyophis - terrestrial - Amphibia
B Limulus - body covered by chitinous exoskeleton - Arachnida
C Adamsia - radially symmetrical - Cnidaria
D Petromyzon - endoparasite - Cyclostomata
Correct Answer
Option D
Solution

(d) Ichthyophis-Amphibian, Limulus-Arthropoda, Adamsia-Cnidaria, Petromyzon-Jawless vertebrate & ectoparasite.

Q74
Which of the following represents the correct combination without any exception?
A Mouth ventral, gills without operculum; skin with placoid scales; persistent notochord - Chondrichthyes
B Sucking and circular mouth; jaws absent; integument without scales; paired appendages - Cyclostomata
C Body covered with feathers; skin moist and glandular; fore-limbs form wings; lungs with air sacs - Aves
D Mammary gland; hair on body; pinnae; two pairs of Limbs - Mammalia
Correct Answer
Option A
Solution

(a) Aves possess dry skin.

Pinnae are not found in aquatic animals and egg laying mammals.

In cyclostomes, unpaired appendages are found.

Q75
Which of the following animals is not viviparous?
A Elephant
B Platypus
C Whale
D Flying fox (Bat)
Correct Answer
Option B
Solution

(b) Platypus is an oviparous animal.

Q76
Which one of the following characteristics is not shared by birds and mammals?
A Ossified endoskeleton
B Breathing using lungs
C Viviparity
D Warm blooded nature
Correct Answer
Option C
Solution

(c) All mammals except the monotremes are viviparous.

Q77
Which of the following characteristic features always holds true for the corresponding group of animals?
A Cartilaginous endoskeleton - Chondrichthyes
B Viviparous - Mammalia
C Possess a mouth with upper and lower jaw - Chordata
D 3-chambered heart with one incompletely divided ventricle - Reptilia
Correct Answer
Option A
Solution

(a) Chondrichthyes always have cartilaginous endoskeleton.

Q78
Which among these is the correct combination of aquatic mammals?
A Dolphins, Seals, Trygon
B Whales, Dolphins, Seals
C Trygon, Whales, Seals
D Seals, Dolphins, Sharks
Correct Answer
Option B
Solution

(b) Sharks and Trygon are members of cartilaginous fish while Whale, Dolphin and Seals are aquatic mammals.

Q79
If the head of cockroach is removed, it may live for few days because
A the cockroach does not have nervous system.
B the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
C the head holds a 1 / 3^rd of a nervous system while the rest is situated along the dorsal part of its body.
D the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
Correct Answer
Option B
Solution

(b) Cockroaches breathe passively through a network of pipes connected to holes called spiracles along the length of their body.

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