HARD
11th Andhra Pradesh Board
IMPORTANT
Earn 100

Cnidarians and some flatworms have an incomplete gut and exhibit 'blind sac plan'. Justify the statement.

Chapter-Wise 3D Zoology Videos from Andhra Pradesh Board Intermediate First Year Zoology

Coelom in Animals
08 min 16 sec

Coelom in Animals

Do your organs bump against each other or the body wall when you walk or run or roll? Never! This is due to the fact that there is enough space between them....
Third Line of Defence
03 min 47 sec

Third Line of Defence

The third line of defence is called the immune response and it is specific. It involves the production of two types of lymphocytes. Let’s learn more about th...
Exocrine Glands and Endocrine Glands
05 min 40 sec

Exocrine Glands and Endocrine Glands

Most organs have functions in one system of the body, but the pancreas have roles and functions in two systems! Learn all about the pancreas and its endocrin...