Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.
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Question 1501:

The structure labelled X is used by the organism in the same way as man uses his
Options:
A) oesophagus
B) trachea
C) stomach
D) intestine
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The correct answer is A .
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Question 1502: The factor that least affects food shortages in sub-saharan Africa is
Options:
A) flooding
B) pests
C) mixed-cropping
D) drought
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The correct answer is C .
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Question 1503: When a short-sighted person views a distant object without spectacles, the image is formed
Options:
A) on the retina
B) in front of the retina
C) behind the retina
D) on the blind spot
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The correct answer is B .
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Question 1504: Amoeba moves by means of
Options:
A) Cilia
B) Flagella
C) Pseudopodia
D) Swimmerets
E) Setae
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The correct answer is C .
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Question 1505:
Which processes are involved in nutrient cycling in a functioning ecosystem?
Options:
A) Erosion, weathering, and sedimentation
B) Decomposition, evaporation, and precipitation
C) Nitrogen fixation, denitrification, and ammonification
D) Respiration, photosynthesis, and transpiration
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The correct answer is C .
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Question 1506:

The function of the part labelled 1 is to
Options:
A) secrete a fluid which lubricates the joint
B) attach muscles to the bones at the joint
C) bend the bones at the joint
D) hold the joint in place
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The correct answer is C .
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Question 1507:

In the digestive system, absorption of nutrient into the blood takes place in the part labelled
Options:
A) 1
B) 2
C) 3
D) 4
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The correct answer is C .
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Question 1508: In mammals, the exchange of nutrients and metabolic products occurs in the
Options:
A) lungs
B) oesophagus
C) trachea
D) lymph
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The correct answer is D .
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Question 1509: The deficiency of vitamin D leads to
Options:
A) beriberi
B) pellagra
C) ricket
D) scurvy
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The correct answer is C .
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Question 1510: Soil is said to be fertile if
Options:
A) It is black
B) it can supply usable nutrients to plants
C) the oxygen content is very high
D) artificial manure is added to it
E) it is not waterlogged
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The correct answer is B .