Science Practice Quiz 144

Q1.What is the approximate age range during which the first set of teeth, known as milk teeth, typically fall off?

A. Between two to four years B. Between six to eight years C. Between ten to twelve years D. Between twelve to fourteen years

Q2.Which of the following statements accurately describes permanent teeth according to the provided text?

A. They are the first set of teeth that grow during infancy. B. They fall off at the age between six to eight years. C. They replace the milk teeth and may last throughout life. D. They are primarily used for piercing and tearing food.

Q3.In the context of animal nutrition, what is the process of taking food into the body called?

A. Digestion B. Absorption C. Assimilation D. Ingestion

Q4.What is the primary mechanical function of teeth in the process of eating?

A. To absorb nutrients from food. B. To chemically break down food into simple substances. C. To chew food and break it down mechanically into small pieces. D. To transport food from the mouth to the stomach.

Q5.How is each tooth rooted in the gums, according to the provided information?

A. Each tooth is loosely attached to the jawbone. B. Each tooth is rooted in a separate socket in the gums. C. Teeth are fused directly to the jawbone without sockets. D. Teeth are held in place by a single, continuous gum line.

Q6.What is the primary action of saliva on starch, according to the provided text?

A. It breaks down proteins into amino acids. B. It breaks down fats into fatty acids. C. It breaks down starch into sugars. D. It breaks down cellulose into glucose.

Q7.Where is the tongue primarily attached in the human mouth, as per the given information?

A. To the roof of the buccal cavity at the front. B. To the sides of the buccal cavity. C. At the back to the floor of the buccal cavity. D. To the palate at the back.

Q8.What is the direct cause of tooth decay?

A. Lack of calcium in the diet. B. Acids released by bacteria breaking down leftover sugars. C. Excessive brushing of teeth. D. Genetic predisposition.

Q9.What can be an extreme consequence if tooth decay is not treated in time?

A. Development of gum disease. B. Severe toothache. C. Tooth loss. D. Formation of dental plaque.

Q10.Which of the following are identified as major culprits of tooth decay in the given passage?

A. Dairy products and vegetables. B. Chocolates, sweets, and soft drinks. C. Proteins and fats. D. Fruits and whole grains.

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Science Practice Quiz 144