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Byju's Answer
Standard X
Biology
Grades of Organization
Which of the ...
Question
Which of the following statement is the true description about an animal concerned?
A
Cockroach has 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen).
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B
The alimentary canal in earthworm consists of pharynx.
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C
The body of frog is divisible into head, neck and trunk.
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D
Both A and B
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Solution
The correct option is
D
Both A and B
A cockroach has 10 pairs of spiracles on its body, out of which, two are present on its thorax and the rest are present on its abdomen.
The alimentary canal of
Pheretima
consists of pharynx among other organs.
The body of the frog is divisible into head and trunk.
So, The correct answer is 'Both A and B'.
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How many pair of spiracles are present in thorax region of cockroaches?
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Column II below consists of brief description of organisms in column I. Which of the following is incorrect match between column I and column II
Column I
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