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21 questions · timed · auto-graded

Question 11 Mark
Given alongside are two figures (A and B) showing a phenomenon that was first observed in Manchester before and after the year 1850.

Answer the following.
What name has been given to this phenomenon?
Answer
Industrial melanism
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Question 21 Mark
Give the scientific name of the organism which is cited as the classical example of 'natural selection'.
Answer
Biston betularia is classical example of 'natural selection'.
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Question 31 Mark
Name any three vestigial organs found in humans.
Answer
Three vestigial organs found in humans are wisdom teeth, vermiform appendix and pinna.
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Question 41 Mark
The range of cranial capacities in the following ancestral forms were
Homo sapien sapiens
Answer
Homo sapiens sapiens $-1450$ to $1600\ cm^3$
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Question 51 Mark
The range of cranial capacities in the following ancestral forms were
Cro-magnon
Answer
Cro-magnon $- 1450$ to $1600\ cm^3$
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Question 61 Mark
The range of cranial capacities in the following ancestral forms were
Homo erectus
Answer
Homo erectus - 800 to $1125 cm^3$
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Question 71 Mark
The range of cranial capacities in the following ancestral forms were
Homo habilis
Answer
Homo habilis $- 680$ to $735\ cm^3$
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Question 81 Mark
The range of cranial capacities in the following ancestral forms were
Australopithecus
Answer
Australopithecus $-450$ to $600 cm^3$
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Question 91 Mark
Name the Following :
Name the organism used as an example to explain 'Industrial Melanism'.
Answer
Peppered moth : Biston betularia
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Question 101 Mark
Name the Following :
The organs that were completely developed and functional in the ancestors but are in a reduced, nonfunctional form in the current species.
Answer
Vestigial organs
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Question 121 Mark
Name the Following :
The branch of science that deals with the history and evolution of organisms.
Answer
Paleontology
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Question 151 Mark
Name the Following :
Term used for a life form that has remained unchanged for a hundred millions of years.
Answer
Living fossil
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Question 171 Mark
Name the Following :
The term used for constant struggle or competition for the limiting factors such as food and space.
Answer
Survival of the fittest
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