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 291: Which of the following instruments is used to measure relative humidity?
Options:
A) Hydrometer
B) Thermometer
C) Hygrometer
D) Anemometer
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The correct answer is C .
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Question 292:
In which of the following groups of animals are flagella and cilia found?
Options:
A) Flatworms
B) Annelids
C) Coelenterates
D) protozoa
E) Nematodes
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The correct answer is D .
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Question 293: The relationship between a termite and the protozoam in its intestine is described as
Options:
A) predation
B) saproplytism
C) symbiosis
D) parasitism
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The correct answer is C .
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Question 294:
Blood circulation in a mammal is said to be double because
Options:
A) It passes twice through the heart in a complete circuit
B) It moves in both arteries and veins
C) It circulates in both the hands and other organs
D) The heart contains auricles and ventricles
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The correct answer is A .
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Question 295: The Southern Guinea Savanna differs from the Northern Guinea Savanna in that it has
Options:
A) lower rainfall and shorter grasses
B) less grasses and scattered trees
C) more rainfall and taller grasses
D) less arboreal and burrowing animals
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The correct answer is C .
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Question 296: Which of the following is a measure for the control of bilharzia?
Options:
A) Cutting low brushes around homes
B) Application of molluscicides in water bodies
C) Screening windows and doors with mosquito nets
D) Application of herbicides in water bodies
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The correct answer is B .
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Question 297: In spite of the removal of carbondioxide from the atmosphere, its amount remains more or less constant because
Options:
A) it is produced by green plants during photosynthesis
B) it is produced during respiration of animals
C) it is absorbed inn ocean water
D) green plants release it during the day
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The correct answer is B .
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Question 298:
The genes crossing over occurs during?
Options:
A) fertilization
B) mutation
C) mitosis
D) meiosis
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The correct answer is D .
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Question 299:
Which of the following is an example of continous variation?
Options:
A) Human blood groups
B) Sex difference in human
C) Haemoglobin types
D) Height in humans
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The correct answer is D .
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Question 300: The endoplast cells found in hydra are used for
Options:
A) reproduction
B) offence and defence
C) locomotion and nutrition
D) food collection
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The correct answer is A .