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 871: A characteristic that best exemplifies the evolutionary advancement of mammals over other vertebrates is the
Options:
A) vivparous mode of reproduction
B) possession of paired limbs
C) terrestrial mode of life
D) possession of a heart
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The correct answer is A .
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Question 872:

From the diagram above the part labelled IV represents the
Options:
A) colon
B) ileum
C) caecum
D) duodenum
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The correct answer is D .
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Question 873:
The hypha of rhizopus is said to be non-septate because it
Options:
A) does not contain chloropyll
B) has no cross wall
C) is vacuoled
D) stores oil globus
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The correct answer is B .
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Question 874: The activity of an organism which affects the survival of another organism in the same habitat constitutes
Options:
A) an edaphic factor
B) an abiotic factor
C) a biotic factor
D) a physiographic factor
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The correct answer is C .
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Question 875: A freshwater pond may contain
Options:
A) tadpole, water boatman, leeches and crab
B) water beetle, shrimps, water snail and water bug
C) water lily, fish, water scorpion and dragon larva
D) pon skater, water lily, shark and mosquito larva
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The correct answer is C .
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Question 876: The part of the ear that is concerned with balance is the
Options:
A) semi-circular canals
B) incus
C) malleus
D) Eustachian tube
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The correct answer is A .
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Question 877: which of the following is an agent of a sexually transmitted disease?
Options:
A) Entamoeba histolytica
B) Salmonella typhi
C) Treponema pallidum
D) Clostridium tetani
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The correct answer is C .
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Question 878: The activity of ptyalin is likely to decrease with an increase in the concentration of
Options:
A) oxygen
B) starch
C) protein
D) acid
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The correct answer is D .
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Question 879:
Which of the following traits is not visible in a person with Down syndrome?
Options:
A) Short neck
B) High muscle tone
C) Small stature
D) Slant eyes
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The correct answer is B .
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Question 880: The function of the red head in male Agama lizards is to
Options:
A) scare other males from the territory
B) warn predators of the distastefulness of the animal
C) attract female lizards for mating purposes
D) conceal and camouflage the animal from predators
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The correct answer is C .