Which of the following structures is common b | vedclass

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(D) In both cockroaches $(Periplaneta 	ext{ } americana)$ and earthworms $(Pheretima 	ext{ } posthuma)$, the nervous system is organized into a vent

Vedclass · Accepted Answer

Ventral nerve cord

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(D) In both cockroaches $(Periplaneta 	ext{ } americana)$ and earthworms $(Pheretima 	ext{ } posthuma)$, the nervous system is organized into a ventral nerve cord.In earthworms, the nerve cord is solid, double, and ventral, extending along the entire length of the body.In cockroaches, the nervous system consists of a series of fused segmental ganglia joined by paired longitudinal connectives on the ventral side.Therefore, the ventral nerve cord is a common structural feature.

Column-$I$	Column-$II$	Column-$III$
$(1)$ Cockroach	$(p)$ Anis	$(w)$ Posthuma
$(2)$ Frog	$(q)$ Asterias	$(x)$ Megascolecidae
$(3)$ Maize	$(r)$ Anura	$(y)$ Opisthopora
$(4)$ Earthworm	$(s)$ Zea	$(z)$ Poaceae

Which of the following structures is common between a cockroach and an earthworm?

Similar Questions

Select the incorrectly matched pair from the following:

Select the correct option for the matching pairs:

Column-$I$ Column-$II$ Column-$III$

$(1)$ Cockroach $(p)$ Anis $(w)$ Posthuma

$(2)$ Frog $(q)$ Asterias $(x)$ Megascolecidae

$(3)$ Maize $(r)$ Anura $(y)$ Opisthopora

$(4)$ Earthworm $(s)$ Zea $(z)$ Poaceae

Which mouth part is present in the female $Anopheles$ mosquito but absent in the male?

Mark the odd one in each series:
$(a)$ Fat body,Nephrocyte,Urinary bladder (in cockroach)
$(b)$ Blood,Bone,Cartilage,Muscle
$(c)$ Skeletal,Cardiac,Nerve,Smooth Muscles

Caterpillar and maggot are

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