Why is the body cavity of cockroach called haemocoel? Name the different layer of body wall in it.

3

(a)

Name the main excretory organs of cockroach. Write the structure of these organs.

3

(a)

Mention the similarities between Cardiac and skeletal muscles.

3

(a)

Mention the special features of eye in cockroach.

3

(a)

Difference between keratinised and non keretinised  stratified squamous epitheila

3

(a)

Difference between blood plasma and serum.

3

(a)

Mention briefly about the circulatory system of earthworm.

3

(a)

Draw a neat diagram of digestive system of frog.

3

(a)

What are the main differences between smooth muscles, skeletal muscles and cardiac muscles?

3

(a)

Explain fertilization and development in pheretima.

3

(a)

Draw a well labelled diagram of the circulatory system of cockroach.

3

(a)

Explain in brief the nervous system of cockroach.

3

(a)

Draw a well lebelled diagram of both ventral and dorsal views of the brain of the frog.

3

(a)

What do you understand by special junctions between cells? Which type of special junction are found in epithelial tissues?

3

(a)

Write short notes on following:
Glandular Epithelium

3

(a)