Animal Kingdom — Page 5 | NEET Biology

Q41

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 monotremes are viviparous

Q42

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 jaw Chordata

D 3-chambered heart Reptilia

Correct Answer

Option A

Solution

(a) Chondrichthyes always have cartilaginous endoskeleton

Q43

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 cartilaginous fish while Whale, Dolphin and Seals are aquatic mammals

Q44

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

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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 spiracles

Q45

Animals/organisms floating on the surface of water are

A plankton

B pelagic

C benthos

D neritic

Correct Answer

Option A

Solution

(a) Organisms passively floating on the surface of water are planktons.

Q46

Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?

A Pteropus and Ornithorhyncus - Viviparity

B Garden lizard and Crocodile - Three chambered heart

C Ascaris and Ancylostoma - Metameric segmentation

D Sea horse and Flying fish - Cold blooded (poikilothermal)

Correct Answer

Option D

Solution

(d) Sea horse and flying fish are cold blooded animals.

Q47

Which is a matching pair of an animal and a certain phenomenon it exhibits?

A Taenia - Polymorphism

B Pheretima-Sexual dimorphism

C Musca-Complete metamorphosis

D Chameleon-Mimicry

Correct Answer

Option C

Solution

(c) Musca is a genus of flies including housefly. It undergoes complete metamorphosis.

Q48

The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the phylum

A Annelida

B Mollusca

C Cnidaria

D Echinodermata

Correct Answer

Option D

Solution

(d) Echinoderms show bilateral symmetry in their larval stage and pentamerous radial symmetry in the adult stage.

Q49

In which one of the following the genus name, its two charcters and its phylum are not correctly matched, whereas the remaining three are correct Genus name Two characters Phylum

A Body Segmented Mouth with radula Mollusca

B Spiny Skinned Water vascular system Echinoermata

C Pore bearing Canal system Porifera

D Jointed appendages Chitinous exoskeleton Arthropoda

Correct Answer

Option A

Solution

(a) Molluscans are soft bodied animals. Their body is unsegmented with a distinct head, muscular foot and visceral hump.

Q50

Hair occur in all mammals except those of

A Rodentia

B Chiroptera

C Primata

D Cetacea

Correct Answer

Option D

Solution

(d) Members of order Cetacea (whales, dolphins) have smooth and hairless skin.