Choose the correct statement.

All reptiles have a three chambered heart.

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All Pisces have gills covered by an operculum.

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All mammals are viviparous.

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All cyclostomes do not possess jaws and paired fins.

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Solution

The correct option is D All cyclostomes do not possess jaws and paired fins.
All cyclostomes do not possess jaws and paired fins.
Crocodile is a reptile which has a 4-chambered heart.
The operculum is absent in sharks.
Platypus is an egg laying mammal.

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Similar questions

	Column-I		Column-II
(a)	Scales and paired fins absent	(i)	Torpedo
(b)	Claspers on pelvic fins of males	(ii)	Cyclostomes
(c)	4 pairs of gills covered with operculum	(iii)	Chondrichthyes
(d)	Electric organs	(iv)	Osteichthyes

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