The ________________is the tongue of cockroach.

(a)

labrum

(b)

labium

(c)

hypopharynx

(d)

maxilla

In earthworm the female genital aperture lies on the ventral side in the ___________ segment.

(a)

15th

(b)

14th

(c)

10th

(d)

12th

___________ are described as tubular blind processes.

(a)

Hepatic caecae

(b)

Malpighian tubules

(c)

Nephridia

(d)

Colleterial gland

The heart of cockroach has __________ chambers.

(a)

10

(b)

12

(c)

13

(d)

8

A small flap found hanging on the mouth of earthworm is called __________

(a)

Prostomium

(b)

Peristomium

(c)

Clitellum

(d)

Pygidium