IGCSE Biology Paper-3: Specimen Questions with Answers 73 - 79 of 358

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Question 73

Question

MCQ▾

Which is the main pituitary gland disorder?

Choices

Choice (4)

a.

Grave disorder

b.

Goiter

c.

Addison՚s disorder

d.

Dwarfism

Answer

d.

Explanation

Hypo secretion of human growth hormone can leads dwarfism in which bones and other parts of the body is slowed down and body of mature person is look like a child.

Passage

Figure shows a simple food chain of grassland ecosystem

Food Chain Related Tograss Land Ecosystem Without Any Direction

Question 74 (1 of 4 Based on Passage)

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Write in Short

Short Answer▾

Organism, which eat producers, are called.

Explanation

Herbivores

Question 75 (2 of 4 Based on Passage)

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Write in Short

Short Answer▾

Compounds, which make their own food, are known as.

Explanation

Plants

Question 76 (3 of 4 Based on Passage)

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Write in Short

Short Answer▾

Food chain is start with which source

Explanation

sunlight

Question 77 (4 of 4 Based on Passage)

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Write in Short

Short Answer▾

In which direction arrows will be marked

Explanation

Food Chain Related to Grass Land Ecosystem Unidirectional Way

Question 78

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Write in Short

Short Answer▾

Many factories do not treat their liquid waste and release it into a water resource. What is the other term can be used for liquid waste?

Explanation

The term Sewage Water is used for the liquid waste.

Question 79

Question

MCQ▾

Nitrogenous waste urea and uric acid՚s solubility in water is.

Table of Urea and Uric Acid Solubility in Water

Choices

Choice (4)

a.

d

b.

b

c.

a

d.

c

Answer

d.

Explanation

Urea is neither acidic nor alkaline and it is easily dissolved in water. Frog, toad, mammals all are ureotelic the solubility of uric acid is rather low . Insects reptiles birds are uricotelic.

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