IGCSE Biology Paper-3: Specimen Questions with Answers 22 - 26 of 358

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Passage

Figure shows part of the female reproductive system during pregnancy

Reproductive System of Female During the Time of Pregnancy

Question 22 (3 of 3 Based on Passage)

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Short Answer▾

Write two functions of part B.

Explanation

(A) Placenta supports to transportation of nutrients from mother blood into foetus

(B) Waste related to Nitrogenous products created in the embryo diffuse through the placenta into the maternal blood stream.

(C) Antibodies developed in the mother against certain diseases like measles, small pox, diphtheria pass from mother into the foetal blood through the placenta.

Question 23

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Short Answer▾

In photosynthesis light energy is converted into chemical energy, complete the equation of photosynthesis process-

Carbon dioxide + water + X + Y … ⇾ Food + oxygen

In this equation, what are X and Y?

Explanation

X = light, Y = chlorophyll

Question 24

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Short Answer▾

Match the contents of column 1 with that of column 2

Table Shows Types of Photoperiodism and Some Example

Explanation

Shows Types of Photoperiodism and Some Example

Passage

Figure Shows the Different Level of Organization

Question 25 (1 of 2 Based on Passage)

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Short Answer▾

Figure shows the level of organization. Fill the name of label X and Y.

Explanation

X-Population

Y-Ecosystem

Question 26 (2 of 2 Based on Passage)

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Short Answer▾

What do you mean by community?

Explanation

A community is a group of any size that shares common values, or that is located in a particular geographical area e. g. village.

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