Question

Write short answers.
1. Name different kinds of teeth.
2. Which are the three layers of a tooth?
3. Write four conditions that help microbes to grow.
4. Name four kinds of microbes.
5. Write any four diseases caused by microbes.

D Answer these questions.
1. How are teeth important to us?
2. What are the functions of molars and premolars?
3. What types of food are good for our teeth?
4. Write two tips which help to keep your teeth healthy.
5. What are microbes? Name two diseases caused by protozoa.
6. How are some microbes useful for us?​

Answer 1

Answer:

Number 1 Answer is in first picture .

Number 2 Answer-Your teeth are composed of four dental tissues.Three of them are enamel, dentin and cementum -are hard tissues.

Number 3 Answer is in second picture.

Number 4 Answer is in third picture.

Number 5 Answer is in fourth picture.

Explanation:

D.1)Answer is in fifth picture.

D.2)The functions of molars and premolars are chewing and grinding food.

D.3)The foods which are good for our teeth are cheese,dairy foods,leafy vegetables, wild salmon,green tea,carrot sticks.

D.4)Two tips which help our teeth to keep healthy are brush atleast twice a day. The best time to brush teeth is after meal.

D.5)Malaria and chagas disease are caused by protozoa.

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