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 591:
Viruses are pathogens of the following diseases except
Options:
A) Tuberculosis
B) Measles
C) Small pox
D) Poliomyelitis
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The correct answer is A .
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Question 592: The vector of the malaria parasite is the
Options:
A) female anopheles mosquito
B) female culex mosquito
C) male anopheles mosquito
D) male culex mosquito
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The correct answer is A .
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Question 593: Fruit enlargement can be induced by spraying young ovary with
Options:
A) cytokinin, abscisic acid and ethylene
B) gibberellin, ethylene and abscisic acid
C) auxin, abscisic acid and ethylene
D) auxin, cytokinin and gibberellin
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The correct answer is D .
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Question 594: Red coloration on the head of a male lizard helps it to
Options:
A) mark is territory
B) camouflage in the enviroment
C) secure its mate
D) defend itself
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The correct answer is C .
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Question 595:

In the diagram, the experiment demonstrates
Options:
A) geotropism
B) thigmotropism
C) phototropism
D) hydrotropism
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The correct answer is A .
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Question 596: Birds which are large with long straight pointed beaks, long necks and long legs are likely to be
Options:
A) insect eaters
B) fish catchers
C) nectar feeders
D) fruit eaters
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The correct answer is C .
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Question 597:
The bright colours of the comb and feathers in the peacock are for?
Options:
A) sex differentiation
B) beauty
C) courtship
D) defence
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The correct answer is C .
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Question 598: Where is the energy produced in a cell?
Options:
A) Nucleus
B) Nucleolus
C) Lysosomes
D) Chloroplast
E) Mitochondria
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The correct answer is E .
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Question 599: If an animal is very active and has good muscular control, it is likely to have well-developed
Options:
A) Olfactory lobes
B) Cerebral hemisphere
C) Optic lobes
D) Cerebellum
E) Spinal cord
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The correct answer is D .
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Question 600: Free nitrogen is released to the atmosphere by
Options:
A) Nitrogen-fixing bacteria
B) nitrifying bacteria
C) denitrifying bacteria
D) saprophytic bacteria
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The correct answer is C .