Which one of the following is a living fossil | vedclass

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Question

(A) living fossil is an extant taxon that closely resembles related species known only from the fossil record. $Sphenodon$ (the tuatara) is a reptile

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Sphenodon

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(A) living fossil is an extant taxon that closely resembles related species known only from the fossil record. $Sphenodon$ (the tuatara) is a reptile found in New Zealand that has remained virtually unchanged for millions of years,making it a classic example of a living fossil. $Heloderma$ is a genus of venomous lizards,while rabbits and frogs are modern,highly evolved organisms that do not fit the definition of a living fossil.

Column-$I$	Column-$II$
$(a)$ Trygon	$(i)$ Echinodermata
$(b)$ Ascidia	(ii) Viviparous
$(c)$ Asterias	(iii) Chondrichthyes
$(d)$ Kangaroo	(iv) Oviparous
$(e)$ Penguin	$(v)$ Urochordata

Animal	Morphological Feature
$(i)$ Crocodile	$4$-chambered heart
$(ii)$ Sea cucumber	Echinodermata (Water vascular system)
$(iii)$ Obelia	Metagenesis
$(iv)$ Lemur	Thecodont

Which one of the following is a living fossil?

Similar Questions

Match the following:
Column-$I$ Column-$II$
$(a)$ Trygon $(i)$ Echinodermata
$(b)$ Ascidia (ii) Viviparous
$(c)$ Asterias (iii) Chondrichthyes
$(d)$ Kangaroo (iv) Oviparous
$(e)$ Penguin $(v)$ Urochordata

Which of the following pairs are correct?

Animal Morphological Feature

$(i)$ Crocodile $4$-chambered heart

$(ii)$ Sea cucumber Echinodermata (Water vascular system)

$(iii)$ Obelia Metagenesis

$(iv)$ Lemur Thecodont

Identify the mismatched pair regarding the endoskeleton of animals.

Identify the correct terms for the following analogy-based questions:
$(i)$ Porifera : Choanocytes :: Platyhelminthes : ....
$(ii)$ Chondrichthyes : Placoid scales :: Osteichthyes : ....

The echinoderms,hemichordates,and chordates had which of the following larvae as a common ancestral form?

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