Fill in the blanks:
a. The main steps of digestion in humans are _____, _______, ______, _______ and ______.
b. The largest gland in the human body is ______.
c. The stomach releases hydrochloric acid and _____ juices which act on food.
d. The inner wall of the small intestine has many finger-like outgrowths called _______.
e. Amoeba digests its food in the _________.
Match the items of Columns I with those given in Column II:
Product(s) of digestion
Fatty acids and glycerol
Match the items of Column I with suitable items in Column II:
a. Salivary gland
i. Bile juice secretion
ii.Storage of undigested food.
iii. Saliva secretion
iv. Acid release
e. Small intestine
v.Digestion is completed
f. Large intestine
vi.Absorption of water
vii. Release of faces
Collect data from your friends, neighbours and classmates to know more about milk teeth.
Tabulate your data. One way of doing it is given below:
Age at which first tooth fell
Age at which last tooth fell
No. of teeth lost
No. of teeth replaced
Find out from at least twenty children and find the average age at which children lose the milk teeth. You may take help of your friends.