IGCSE Biology Paper-3: Specimen Questions with Answers 205 - 209 of 358

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Passage

Table Shows Different Types of Disease and Their Causing Agent

Question 205 (1 of 2 Based on Passage)

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Short Answer▾

In above disease, how its causing agent infect or transmission is occur by?

Explanation

leprosy -Long and close contact

‎Plague-Rat Flea

‎Small pox-By contact

Question 206 (2 of 2 Based on Passage)

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Match the disease and its causing agent

Explanation

Table Shows Different Types of Disease and Their Causing Agent

Question 207

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Short Answer▾

Figure show organisms or parts of organisms. State which of the drawings shows a monocotyledon seed. State one reason for your choice.

In Picture Shows a Monocotyledon Seed and a Dicotyledonous Seed

Explanation

Part A is a monocotyledon seed because only one cotyledon is present in the embryo, which is thin, and lack of food materials.

Passage

Figure Shows a Part of Respiratory System of Human Being

Question 208 (1 of 2 Based on Passage)

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Short Answer▾

This diagram shows a part of respiratory system of human being. Label the part Y

Explanation

Y part is Bronchus

Question 209 (2 of 2 Based on Passage)

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Short Answer▾

What is the functions of part Y. ?

Explanation

Bronchi are the main passageway into the lungs. When air is inhaled, the oxygen in it cannot be directly absorbed and used by the body. Each part of the respiratory system leading up to the bronchioles is smaller than the last. The bronchioles turn into small air sacs called alveoli, which allows oxygen to be taken in by the body and carbon dioxide to be eliminated.

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