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 251:
A group of organism of different species living in a particular area is described as a
Options:
A) colony
B) community
C) population
D) niche
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The correct answer is B .
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Question 252: In which of the following groups of animals are flagella and cilia found?
Options:
A) Flatworms
B) Annelids
C) Coelenterates
D) protozoa
E) Nematodes
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The correct answer is D .
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Question 253: An old man is likely to be long-sighted because age affects the
Options:
A) optic nerves
B) retina
C) ciliary muscles
D) cornea
E) aqueous humour
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The correct answer is B .
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Question 254: The habitat of the cysticercus of taenia solium is
Options:
A) Alimentary canal of cattle
B) Muscles of pig
C) Alimentary canal of pig
D) Muscles of cattle
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The correct answer is B .
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Question 255: Blood circulation in a mammalian is said to be double because
Options:
A) it passes twice through the heart in a complete circuit
B) it moves in both arteries and veins
C) it circulates in both the heart and other organs
D) the heart contain auricles and ventricles
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The correct answer is A .
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Question 256: Which of the following ions is involved in the conduction of the nerve impulse?
Options:
A) Ca2+
B) K+
C) H+
D) Mg2+
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The correct answer is B .
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Question 257: For pollen to be released in Crotalaria the insect must depress the
Options:
A) wing
B) keel
C) standard
D) antepetalous stamen
E) antesepalous stamen
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The correct answer is B .
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Question 258: Which of the following growth activities in plants is brought about by gibberellins?
Options:
A) Rapid cell division
B) Tropic response
C) Cell elongation
D) Main cell elongation
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The correct answer is C .
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Question 259:

Use the diagram above to answer this question. The young proglottid is represented by
Options:
A) III
B) IV
C) I
D) II
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The correct answer is B .
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Question 260: One disease NOT caused directly by bacteria is
Options:
A) malaria
B) tuberculosis
C) pneumonia
D) tetanus
E) cholera
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The correct answer is A .