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 91:
An example of a radially symmetrical organisms is
Options:
A) Planaria
B) Hydra
C) Tapeworm
D) Roundworm
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The correct answer is B .
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Question 92: In terms of the number of individuals, which of the following taxa is most inclusive?
Options:
A) order
B) family
C) class
D) species
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The correct answer is C .
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Question 93: The part of cell that is responsible for the production of energy is
Options:
A) cell membrane
B) cytoplasm
C) mitochondrion
D) nucleus
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The correct answer is C .
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Question 94: The blood component that has the greatest affinity for oxygen is the
Options:
A) lymphocytes
B) leucocytes
C) erythrocytes
D) thrombocytes
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The correct answer is C .
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Question 95: The lowest level of organization in living organisms is
Options:
A) organ
B) cell
C) system
D) tissue
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The correct answer is B .
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Question 96: When it is cold, the blood vessels of the skin
Options:
A) dilates to increase the amount of blood flowing
B) constrict to reduced the amount of blood flowing to the skin
C) dilate to reduce the amount of blood flowing to the skin
D) constrict to increase the amount of blood flowing to the skin
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The correct answer is B .
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Question 97: The element that is essential for the coagulation of blood is
Options:
A) potassium
B) calcium
C) phosphorus
D) iron
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The correct answer is B .
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Question 98: The fleshy base of a flower to which the different floral parts are attached is known as
Options:
A) calyx
B) sepals
C) Receptacle
D) hypothalamus
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The correct answer is C .
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Question 99: An organism found on a bare rock surface has features of algae and fungi. The organism is
Options:
A) an epiphyte
B) a lichen
C) a bryophyte
D) a fern
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The correct answer is B .
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Question 100: Atmospheric nitrogen is directly replenished in nature through
Options:
A) the activities of denitrifying bacteria
B) the breakdown of ammonium salts in the soil
C) the activities of nitrifying bacteria
D) the activities of nitrogen-fixing bacteria in root nodules
E) egestion, death and decay
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The correct answer is E .