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 471: Which of the following food substance will produce a brick-red colour when warmed with Benedict's solution?
Options:
A) Glucose
B) Starch
C) Egg white
D) Maltose
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The correct answer is A .
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Question 472: A couple has 10 children, all female. Which of the following best explains the situation
Options:
A) The sex determination was by the man's X chromosome
B) The man's sperm count is low
C) The woman is not capable of producing male children
D) The sex determination was by the man's Y chromosome
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The correct answer is A .
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Question 473: The bright coloured eye spots on the wings of moth are an example of
Options:
A) warning colouration
B) disruptive colouration
C) crypsis
D) mimicry
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The correct answer is D .
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Question 474:
Use the diagram shown to answer the question. In plant cells, the role of the membrane is played by the
Options:
A) nucleolus
B) cell wall
C) cytoplasm
D) mitochondrion
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The correct answer is B .
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Question 475:
Which is an animal without red blood cells?
Options:
A) Frog
B) Earthworm
C) Snake
D) Peacock
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The correct answer is B .
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Question 476:
In the diagram, the population size of species II on the 20th day is
Options:
A) 100
B) 200
C) 300
D) 400
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The correct answer is B .
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Question 477:
The specific portion of a habitat which is occupied by a particular species is referred to as
Options:
A) Ecological population
B) Ecological niche
C) Biotic community
D) Ecosystem
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The correct answer is B .
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Question 478:
Which of the following are components of the skeletal system in humans?
Options:
A) Cartilage and blood vessels
B) Ligaments and tendons
C) Muscles and nerves
D) Bones and joints
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The correct answer is D .
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Question 479: Agglutination is the _______ of the ________
Options:
A) coagulation, white bloodcell
B) coagulation, water
C) white blood cells, red blood cell
D) coagulation, red blood cell
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The correct answer is D .
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Question 480:
Man can contact tapeworm through
Options:
A) ingesting uncooked meat
B) from fish
C) from breathing
D) through contact
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The correct answer is A .