Question

Directions: Choose the correct option:

Assertion $\left(A\right):$ Sharks belong to cartilaginous fishes.

Reason $\left(R\right):$ Gill slits are not covered by operculum.

Answer 1

Correct option: $\left(b\right)$ Both assertion$\left(A\right)$ and reason$\left(R\right)$ are true, but reason$\left(R\right)$ is not the correct explanation for assertion.

$\bullet$ Sharks belong to Chondrichthyes or cartilaginous fishes because their endoskeleton is made up of cartilage.

$\bullet$ In these fishes, gill slits are separate and without operculum or gill cover.

$\bullet$ So the correct option is $\left(b\right)$