YOU CAN DOWNLOAD 200+ SUBJECTS PDF BOOK FOR COMPETITIVE EXAMINATIONS
MORPHOLOGY OF ANIMALS
Question 16 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
In earthworm, the circular muscles are highly developed in
body wall | |
gizzard | |
Typhlosole | |
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
prostomium | |
peristomium | |
stomium | |
protostomium |
Question 18 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Nerve ring of earthworm is formed by encircling:
Stomach. | |
Gizzard. | |
Pharynx. | |
Gut. |
Question 19 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Find out the incorrect statement regarding tracheal system of cockroach?
10 pairs of spiracles for intake of air. | |
Spiracles are regulated by sphincters. | |
Tergo-sternal muscles aid in breathing movements. | |
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:
ecrete saliva. | |
Emulsify food. | |
Increase absorptive area. | |
Kill bacteria. |
There are 20 questions to complete.