Millipede $(Julus)$ and Centipede $(Scolopendra)$ are both included under:

$A$ student has identified a triploblastic,coelomate,segmented animal as an arthropod. Which additional character should the student have verified before identifying that animal as an arthropod?

Most adult insects have $6$ legs and ........

One of the representatives of Phylum $Arthropoda$ is

Match Column-$I$ with Column-$II$.

Column-$I$	Column-$II$
$(a)$. $A$ vector of disease	$(i)$ Bombyx
$(b)$. $A$ gregarious pest	$(ii)$ Limulus
$(c)$. $A$ living fossil	$(iii)$ Locusta
$(d)$. An economically important insect	$(iv)$ Culex

The exoskeleton of Arthropoda is covered by ..........