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A: In cockroach, each segment is covered...

A: In cockroach, each segment is covered by three hardened plates called sclerites.
R: These sclerites are dorsal tergite, ventral sternite and lateral pleurite.

A

IF both assertion & Reason are true and the rason is the correct explanation of the assertion

B

If both assertion & reason are true but the reason is not the correct explanation of the assertion, then mark

C

If assertion is true statement but reason is false, then mark

D

if both assertion and reason are false statement

Text Solution

Verified by Experts

The correct Answer is:
D
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A dorsal sclerite of cockroach is called-

Each thoracic segment of Periplaneta americana is enclosed by four "____" skeletal sclerites : a dorsal "_____" a ventral "______" and two lateral "______" . The "_____" of the prothorax is also called pronotum, which covers the neck and a part of the head Complete the above paragraph by selecting the correct sequence of words.

Knowledge Check

  • In each segment of cockroach, the exoskeleton has hardened plates called -

    A
    Sclerites
    B
    Arthrodial membrane
    C
    Ossicles
    D
    None

  • In each segment of cockroach, the exoskeleton has hardened plates called :

    A
    Ossicles
    B
    Keratin
    C
    Sclerites
    D
    None of these

  • The dorsal sclerites and ventral sclerites are called -

    A
    Sternites and tergites respectively
    B
    Tergites and sternites respectively
    C
    Sternites and pleurites respectively
    D
    Tergites and pleurites respectively

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    In exoskeleton of arthropods , I. chitinous plates present over the body are called sclerites . II.sclerites are joined with the help of soft membranous structure called arthrodial membrane . III.the dorsal sclerites are called tergum , ventral sclerites as sternum and lateral sclerites are called pleura. IV. epidermis is present above the cuticle , called hypodermis.

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