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31.

A clitellum is found in:

A.	Earthworm	B.	Leech
C.	Both (a) & (b)	D.	None of these

32.

Which of these has got a clitellum:

A.	Neries	B.	Earthwork
C.	Cockroach	D.	None of these

33.

Clitellum in leeches is:

A.	Permanent	B.	Temproary
C.	Absent	D.	Embryonic

34.

Clitellum produces:

A.	Larva	B.	Young animal
C.	Cocoon	D.	Excretory product

35.

Mouth in annelids is present:

A.	On prostomium	B.	On peristomium
C.	On pygidium	D.	Between prostomium and peristomium

36.

Segmented worms have anus in:

A.	Prostomium	B.	Pygidium
C.	Peristomium	D.	None of these

37.

Pharyngeal nephridia are found in earthworm in the segments:

A.	3, 4, 5	B.	4, 5, 6
C.	5, 6, 7	D.	6, 7, 8

38.

Coelom in leech is:

A.	Extensive	B.	Absent
C.	Reduced due to botryoidal tissue	D.	None of these types but of different nature

39.

Skeletal function in earthworm is performed by:

A.	Alimentary canal	B.	Blood
C.	Nerve cord	D.	Coelomic fluid

40.

In earthworm the exonephric excretion takes place by:

A.	Septal nephridia	B.	Phryngeal nephridia
C.	Integumentary nephridia	D.	Integumentary and phryngeal nephridia