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 981: Which of the following serves as the brain box in man
Options:
A) skeleton
B) skull
C) head
D) spinal column
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The correct answer is B .
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Question 982: The part of the mammalian ear responsible for the maintenance of balance is the
Options:
A) cochlea
B) pinna
C) perilymph
D) vestibular system
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The correct answer is D .
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Question 983: The spores of mucor are dispersed by
Options:
A) water
B) wind
C) insects
D) explosive mechanism
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The correct answer is B .
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Question 984: The ability of an organism to live successfully in an environment is known as
Options:
A) resistance
B) competetion
C) succession
D) adaptation
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The correct answer is D .
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Question 985:
Which of the following represents the correct hierarchical organization of life from the smallest to the largest scale?
Options:
A) Organs, tissues, cells, organisms, populations, communities, ecosystems
B) Cells, organs, tissues, organisms, populations, communities, ecosystems
C) Tissues, organs, cells, organisms, populations, communities, ecosystems
D) Cells, tissues, organs, organisms, populations, communities, ecosystems
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The correct answer is D .
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Question 986:
Which of the following features is not a characteristic of arteries? Arteries
Options:
A) possess valves at intervals throughout their length
B) have thick muscular and elastic walls
C) carry blood away from the heart
D) transport oxygenated blood with the exception of the pulmonary artery
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The correct answer is A .
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Question 987: The level of organism in spirogyra and volvox is
Options:
A) organ
B) system
C) cell
D) Tissue
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The correct answer is C .
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Question 988: A married couple has 10 children and they are all girls. Which of the following is the CORRECT explanation?
Options:
A) The woman is incapable of producing male children
B) The man’s sperms are very weak
C) The man is not athletic enough
D) The Y component of the men’s sex chromosomes was always involved
E) The X component of the man’s sex chromosomes was always involved
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The correct answer is E .
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Question 989: Which of the following substance is not found in urine?
Options:
A) Water
B) Sodium chloride
C) Nitrogenous compounds
D) Calcium chloride
E) Nitrogenous salts
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The correct answer is D .
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Question 990: When spirogyra cell is immersed in a salt solution more concentrated than its cell sap, it
Options:
A) Remains unchanged
B) Takes up water an burst
C) Absorbs a little water
D) Loses water and shrivels
E) Becomes turgid
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The correct answer is D .