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 1171: During blood transfusion, agglutination may occur as a result of the reaction between
Options:
A) contrasting antigens and antibodies
B) two different antigens
C) two different antibodies
D) similar antigens and antibodies
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The correct answer is A .
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Question 1172: The major function of the swim-bladder in fishes is
Options:
A) breathing
B) buoyancy
C) swimming
D) diving
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The correct answer is B .
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Question 1173: Birds maintain their body temperature with the help of their
Options:
A) blood which maintains constant temperature
B) feathers which cover the body
C) skin which conserves moisture
D) veins which transport fluid of constant temperature to all body tissues
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The correct answer is B .
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Question 1174: One of the following is called emergency hormone in man.
Options:
A) Adrenalin
B) Prolactin
C) Testosterone
D) Thyroxine
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The correct answer is A .
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Question 1175:
The biological association that contributes directly to succession in a community is
Options:
A) competition
B) predation
C) parasitism
D) commensalism
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The correct answer is A .
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Question 1176: Exo-erythrocytic phase of the life cycle of malaria parasite occurs in the
Options:
A) liver of humans
B) reticuloendothelial cells of humans
C) Malphigian tubules of mosquito
D) brain of humans
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The correct answer is A .
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Question 1177: 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 1178: Which of these is a direct photosynthetic product?
Options:
A) Glucose
B) Starch
C) Protein
D) Fats
E) Latex
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The correct answer is A .
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Question 1179: Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport system is
Options:
A) IV
B) III
C) I
D) II
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The correct answer is A .
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Question 1180: In human reproduction, the zygote formed as a result of fertilization gets attached to the wall of the uterus. The process is called
Options:
A) Sexual reproduction
B) Cohesion
C) Pregnancy
D) Implantation
E) Viviparity
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The correct answer is D .