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In Peripleneta americana, the wings exte...

In Peripleneta americana, the wings extends beyond the tip of the abdomen in

A

Males

B

Females

C

Both male and females

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
A
In Peripleneta Americana, the wings extends beyond the tip of the abdomen in males only.
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A uniform wooden stick of mass 1.6 kg and length l rests in an inclined mannar on a smooth, vertical wall of height h(ltl) such that a small portion of the stick extends beyond the wall. The reaction force of th wall on the stick is perpendicular to the stick. The stick makes an angle of 30^@ with the wall and the bottom of the stick is on a rough floor. The reaction of the wall on the stick is equal in magnitude to the reaction of the floor on the stick. The ratio h/l and the friectional force f at the bottom of the stick are (g = 10 ms^2)

Answer in one word or one line. (i) Give the common name of Periplaneta americana. (ii) How many spermathecae are found in earthworm? (iii) What is the position of ovaries in the cockroach? (iv) How many segments are present in the abdomen of cockroach? (v) Where do you find malphigian tubules?

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A2Z-STRUCTURAL ORGANIZATION IN ANIMALS -Section A : Topicwise Questions Topic 4 : Cockroach (morphology And Anatomy)
  1. In Peripleneta americana, the wings extends beyond the tip of the abdo...

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  2. Fill in the blanks: The entire body is covered by a hard chitinous exo...

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  3. Recognise the figure and find out the correct matching.

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  4. Head of cockroach is formed by the fusion of

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  5. The head shows great mobility in all direction due to

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  6. Recognise the figure and find out the correct matching.

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  7. The mouth parts of cockroach are

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  8. In cockroach, walking legs arises from

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  9. In cockroach, wings arises from

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  10. The abdomen in male and females consists of

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  11. Which of the following is incorrect for forewings of cockroach ?

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  12. Recognise the figure and find out the correct matching.

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  13. Brood pouch is formed in female Cockroach by

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  14. Male genital aperture of earthworms is located in the segment

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  15. Read the following statements and find out the incorrect statement.

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  16. In cockroach, labium, labrum and hypopharynx are commonly called

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  17. Recognise the figure and find out the correct matching.

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  18. Malpighian tubules are present at the junction of

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  19. A ring of 6-8 blind tubules present at the junction of foregut and mid...

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  20. Which part of alimentary canal of cockroach has an outer layer of thic...

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