a.

lizard

b.

cockroach

c.

rabbit

d.

bird

a.

Water

b.

Air

c.

Food

d.

Mineral salts

a.

Ovary

b.

Pancreas

c.

Adrenal

d.

Thyroid

a.

shape of locomotory organs

b.

blunt anterior and pointed posterior

c.

presence of micro and mega nuclei in both

d.

presence of anterior and posterior contractile vacoules