How many milk teeth are present in a child?
a) 10
b) 4
c) 20
d) 32
Explanation:Deciduous teeth is the official term for baby teeth, milk teeth, or primary teeth. Deciduous teeth start developing during the embryonic stage and then commonly begin to come in about 6 months after birth.
There are typically 20 primary teeth 10 upper and 10 lower. Commonly, most of them erupt by the time the child is about 2½ years old.
When the milk teeth in children fall?
a) between the age of 2 and 5 years
b) between the age of 6 and 7 years
c) between the age of 9and 15 years
d) between the age of 6 and 12 years
Human Digestive System Unit No: 04
The human digestive
system consists of the gastrointestinal tract plus the accessory organs of
digestion. Digestion involves the breakdown of food into smaller and smaller
components, until they can be absorbed and assimilated into the body.
Digestion:
Digestion
is the complex process of turning the food you eat into nutrients, which
the body uses for energy, growth and cell repair needed to survive. The
digestion process also involves creating waste to be eliminated.
Food mainly
consists of large molecules of …
a) carbohydrates
b) proteins
c) fats and oil
d) all of these
Which of the following process is the breakdown of food into smaller molecules?
a) digestion
b) respiration
c) excretion
d) circulation
