MORPHOLOGY OF ANIMALS biology MCQ’s questions answers

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MORPHOLOGY OF ANIMALS

Question 16 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In earthworm, the circular muscles are highly developed in
A
body wall
B
gizzard
C
Typhlosole
D
pharynx
Question 17 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In earthworm, the first segment in which mouth is situated is known as
A
prostomium
B
peristomium
C
stomium
D
protostomium
Question 18 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Nerve ring of earthworm is formed by encircling:
A
Stomach.
B
Gizzard.
C
Pharynx.
D
Gut.
Question 19 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Find out the incorrect statement regarding tracheal system of cockroach?
A
10 pairs of spiracles for intake of air.
B
Spiracles are regulated by sphincters.
C
Tergo-sternal muscles aid in breathing movements.
D
Inspiration occurs when tergo-sternal muscles contract.
Question 20 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Role of Typhlosole in earthworm is to:
A
ecrete saliva.
B
Emulsify food.
C
Increase absorptive area.
D
Kill bacteria.
There are 20 questions to complete.