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 1121:

The aim of the experiment is to demonstrate
Options:
A) that in mammal gaseous exchange takes place in the lungs
B) the part played by the pleural cavity and diaphragm in respiration
C) that a large amount of oxygen is absorbed by the lungs
D) the presence of carbon (IV) oxide in the exhaled air
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The correct answer is B .
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Question 1122: The plumule is best described as?
Options:
A) Part of the cotyledon
B) Part of the endosperm
C) A miniature shoot
D) Structure near the micropyle
E) Structure opposite the hilum
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The correct answer is C .
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Question 1123: In man, identical twins occur when
Options:
A) An ovum is fertilized by a sperm and then divide into two, each forming a separate embryo
B) an ovum fertilized by two sperms and then divides into two, each forming an embryo
C) two ova are fertilized at the same tine each forming an embryo
D) two ova are fertilized by a single sperm each forming an embryo after fertilization
E) one ovum first divides into two and each half is fertilized by a sperm before developing into an embryo
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The correct answer is A .
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Question 1124:
Which of the following characteristics is typical of the phylum Arthropoda?
Options:
A) Radial symmetry
B) Closed circulatory system
C) Endoskeleton made of bones
D) Presence of a segmented body
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The correct answer is D .
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Question 1125:
Swollen, bleeding gums are another common sign of which vitamin?
Options:
A) Vitamin K
B) Vitamin B
C) Vitamin C
D) Vitamin D
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The correct answer is C .
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Question 1126:
Which of the following substances has the highest amount of energy in joules per unit weight?
Options:
A) Carbohydrates
B) Fats
C) Proteins
D) Vitamins
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The correct answer is B .
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Question 1127: The appendicular skeleton comprises of
Options:
A) pectoral and pelvic girdles
B) forelimbs, skull and pectoral girdle
C) lungs and ribs
D) skull and the vertebral column
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The correct answer is A .
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Question 1128:
A beaker of pond water containing few specimens of Euglena was placed in a dark room for two weeks. At the end of this period, the specimens of Euglena were still alive because they were
Options:
A) able to carry out holozoic nutrition
B) able to carry out photosynthesis using carbon dioxide in the pond water
C) better adapted to life in darkness than to life in light
D) not overcrowded
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The correct answer is A .
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Question 1129:

Which of the labelled parts of the cell contains ribonucleic acid?
Options:
A) 1
B) 2
C) 3
D) 5
Show Answer
The correct answer is C .
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Question 1130:
The only caste in the termite colony whose members can feed themselves are the
Options:
A) workers
B) reproductives
C) soldiers
D) nymphs
Show Answer
The correct answer is A .