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(B) The correct match is $B$. $1$. The presence of a ventral,solid,and double central nervous system is a characteristic feature of non-chordates like

Vedclass · Accepted Answer

Ventral,solid central nervous system $-$ Leech

Vedclass · Answer

(B) The correct match is $B$. $1$. The presence of a ventral,solid,and double central nervous system is a characteristic feature of non-chordates like annelids (e.g.,Leech). $2$. Post-anal tail is a characteristic feature of chordates,not Octopus (a mollusc). $3$. Pharyngeal gill slits are present in the embryos of all chordates,including reptiles like the Garden lizard. $4$. $A$ ventral heart is a feature of non-chordates; chordates possess a dorsal heart.

Column-$I$	Column-$II$
$(A)$ Fish	$(i)$ Two atria and one ventricle
$(B)$ Frog	$(ii)$ One atrium and one ventricle
$(C)$ Snake	$(iii)$ Two atria and two ventricles
$(D)$ Ostrich	$(iv)$ Two atria and incompletely divided ventricle

Which of the following represents a correct match of a somatic feature and the animal possessing it?

Similar Questions

Give the names of the following:
$(a)$ $A$ limbless animal
$(b)$ $A$ cold-blooded animal
$(c)$ $A$ warm-blooded animal
$(d)$ An animal possessing dry and cornified skin
$(e)$ An animal having a canal system and spicules
$(f)$ An animal with cnidoblasts

Which of the following is a correctly matched pair?

Find out the incorrect match in the following options.

Identify the correct sequence of animal phyla in terms of evolution.

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