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 71: Bird toes suitable for digging have claws that are
Options:
A) blunt
B) curved
C) hooked
D) sharp
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The correct answer is A .
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Question 72: Normally the flow of blood is NEVER from
Options:
A) artery to arterioles
B) arterioles to capillaries
C) capillaries to venules
D) arteerioles to the artery
E) venules to the vein
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The correct answer is D .
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Question 73: The characters by which an organism is recognized are termed its
Options:
A) phenotype
B) genotype
C) morphology
D) anatomy
E) physiology
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The correct answer is A .
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Question 74: The flippers of a whale and the fins of a fish are examples of
Options:
A) divergent evolution
B) coevolution
C) continous variation
D) convergent evolution
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The correct answer is D .
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Question 75:

The bone labelled X in the figure above is the
Options:
A) ulna
B) fibula
C) radius
D) humerus
E) tibia
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The correct answer is D .
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Question 76: Oestrogen is a hormone that is synthesized in the
Options:
A) ovaries
B) testes
C) anterior pituitary
D) adrenal cortex
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The correct answer is A .
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Question 77: Which of the following is not a pest of crops?
Options:
A) Bird
B) Rodent
C) Bed bug
D) Grasshopper
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The correct answer is C .
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Question 78:
Which of the following substances pass through the root cell membrane by osmosis?
Options:
A) Ceil sap
B) Carbon dioxide
C) Oxygen
D) Water
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The correct answer is D .
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Question 79: 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 80: A collection of population of all living organisms that exist in a habitat is referred to as
Options:
A) niche
B) ecosystem
C) community
D) environment
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The correct answer is C .