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About how many times does the nymph of the Periplaneta america
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Easy
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Solving time: 1 mins

About how many times does the nymph of the undergo moulting before becoming an adult?

A
4

B
2

C
17

D
13

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Book:

Xtract Objective Biology for NEET (Disha)

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Text SolutionText solutionverified iconVerified

In cockroaches, the development is paurometabolous, which means development through nymphal stage. The nymph grows by moulting about 13 times to reach the adult form.
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Practice questions from Xtract Objective Biology for NEET (Disha)

Question 1
Medium
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In the following question, a statement of Assertion is followed by a statement of Reason.
Assertion: Typhlosole increases the effective area of absorption in the intestine.
Reason: Typhlosole, present in the intestine, is the characteristic feature of cockroach.
  1. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
  2. If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
  3. If Assertion is true but Reason is false.
  4. If both Assertion and Reason are false.
Topic

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Structural Organization in Animals

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Xtract Objective Biology for NEET (Disha)

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Which of the following type of muscle tissue is being described on the basis of given statements ?
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(iii) They are ‘involuntary’ as their function cannot be directly controlled.
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Topic

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Structural Organization in Animals

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Book:

Xtract Objective Biology for NEET (Disha)

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Structural Organization in Animals

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Book:

Xtract Objective Biology for NEET (Disha)

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Question 4
Medium
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A student was given a sample of tissue. He observes and concludes the following characters.
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(ii) Their nuclei are located at the base.
(iii) Free surface may have microvilli.
(iv) It is found in the lining of stomach and intestine
(v) They help in secretion and absorption.
Based on the above features identify the epithelium.
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  3. Squamous epithelium
  4. Glandular epithelium
Topic

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Structural Organization in Animals

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Xtract Objective Biology for NEET (Disha)

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Question Text
About how many times does the nymph of the undergo moulting before becoming an adult?
TopicStructural Organization in Animals
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes145