The famous Indian zoologist who wrote a memoir upon $Pheretima$ $posthuma$ is:

Match the regions of the earthworm based on the clitellum:
$P$ - Segments $14$ to $16$
$Q$ - Segment $17$ to the last segment
$R$ - Segments $1$ to $13$
Identify the correct sequence for the Pre-clitellar region,Post-clitellar region,and Clitellar region,respectively.

Oxygen carrying blood pigment of Earthworm is

In which segments of the earthworm is the clitellum located?

$A$: Earthworms have a closed type of circulatory system.
$R$: In earthworms,hemoglobin is dissolved in the blood plasma.

Select the incorrect option for the earthworm $(Pheretima)$.