CIE Biology Paper-3: Specimen Questions 169 - 173 of 230

Question number: 169

MCQ▾

Question

The diagram shows a half-flower. Define X?

The figure shown half flower

The figure shown half flower

Find x in given diagram

Choices

Choice (4) Response
a.

Petal

b.

Stamen

c.

Pistil

d.

ovary

Answer

a.

Explanation

Petals are changed leaves with brighter color that frame the reproductive parts of flowers.

Question number: 170

MCQ▾

Question

This diagram shows.

the diagram shows the process of ozon depletion

the diagram shows the process of ozon depletion

figure shows Destruction of ozone by CFC.

Choices

Choice (4) Response
a.

Pollution

b.

Greenhouse effect

c.

Acid rain

d.

Destruction of ozone

Answer

d.

Explanation

ozone is a layer present in stratosphere and protect from UV rays. In give diagram destruction of ozone is shown due to chloroflourocarbon.

Question number: 171

MCQ▾

Question

This is the diagram of forest fire. It is the example of

The figure shown forest fire

The figure shown forest fire

Find the reason of forest fire

Choices

Choice (4) Response
a.

Water pollutants

b.

Marine pollution

c.

Soil pollution

d.

Gaseous pollutants

Answer

d.

Explanation

There are some natural resources of gaseous pollution like forest fire, volcanic eruption, pollen grains, dust particles etc.

Passage

Figure shows the teeth of an adult human.

 Image shows the inner part of adult human

Image shows the inner part of adult human

In above image there are some parts are written as A, B, C, D, E and F. Label the enamel part.

Question number: 172 (1 of 5 Based on Passage) Show Passage

Short Answer Question▾

Write in Short

What is the function of Gingivae

Explanation

It protects the jawbone, roots of the teeth, and gives a lubricated surface.

Question number: 173 (2 of 5 Based on Passage) Show Passage

Short Answer Question▾

Write in Short

Tooth decay is caused into the dentine. Explain the factors that can enhance risk of tooth decay

Explanation

a-Eating food and drink high in carbohydrates, particularly snacking regularly between meals, will increase risk of tooth decay.

b-If do not regularly brush teeth and clean between them with floss or an interdental brush, will higher risk of tooth decay.

  1. People who smoke and drink alcohol regularly are at an increased risk of tooth decay.
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