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 741: If a dark-skinned woman (Bb) marries an albino man (bb) and they have four children, how many of the children will be dark-skinned?
Options:
A) 3
B) 2
C) 1
D) None
Show Answer
The correct answer is B .
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Question 742:
Which of the following is not a transmitable character in plants
Options:
A) Habit of growth
B) Resistance to environmental factors
C) Life span
D) Haemophilia
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The correct answer is D .
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Question 743:
The point marked I is referred to as
Options:
A) myelin sheath
B) dendrites
C) axon
D) node of Ranvier
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The correct answer is D .
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Question 744: interveinal chlorosis is normally associated with the deficiency of
Options:
A) magnesium
B) potassium
C) iron
D) calcium
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The correct answer is A .
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Question 745:
Use the diagram above to answer this question. The part responsible for photosynthesis is labelled
Options:
A) III
B) IV
C) I
D) II
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The correct answer is A .
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Question 746:
In the diagram, the change in the length of the neck of the giraffes shown was brought about by
Options:
A) geographical isolation
B) predation
C) symbiosis
D) natural selection
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The correct answer is D .
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Question 747: The turbidity of a pond can be measured using the
Options:
A) anaemometer
B) secchi disc
C) theodolite
D) hydrometer
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The correct answer is B .
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Question 748:
Which of the following is an example of an abiotic ecological factor?
Options:
A) Temperature
B) Competition
C) Predation
D) Symbiosis
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The correct answer is A .
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Question 749: The major limiting factor of productivity in the aquatic habitat is
Options:
A) Food
B) Temperature
C) Water
D) Sunlight
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The correct answer is A .
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Question 750: What is name of the respiratory organ of the crab?
Options:
A) Tubules
B) Trachaea
C) Spiracles
D) Lungs
E) Gills
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The correct answer is E .