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Cockroaches are harmful and useful to ma...

Cockroaches are harmful and useful to mankind justify.

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CHETANA PUBLICATION-Study of Animal Type:Cockroach-Exercise
  1. Cockroaches are harmful and useful to mankind justify.

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  2. Chemical nature of chitin is…………….. .

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  3. Cockroach has………………type of mouthparts.

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  4. Spiracle is a part of……………system of cockroach.

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  5. …………………..is a part of digestive system.

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  6. ………………….is also called as brain of cockroach.

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  7. Dorsal exoskeletal plates of cockroach are called…………… .

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  8. Mouth parts of cockroach are of type

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  9. The hepatic caeca of cockroach

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  10. Blood filled cavity in cockroach is called…………… .

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  11. In cockroach ventral nerve cord is present in the…………. .

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  12. Heart of cockroach is……………chambered.

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  13. ……………….abdominal ganglion in cockroach is the largest.

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  14. Which of the following is not the part of male reproductive sytem?

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  15. In cockroach the head is joined to thorax by a narrow neck called……………...

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  16. Single component of the compound eyes of a cockroach is a hexagonal un...

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  17. ………………are the organs of olfaction of the cockroach.

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  18. ………………..is the upper lip of the cockroach.

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  19. The chitinous plates in the segments of the cockroach are known as…………...

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  20. Each leg of the cockroach has………………..sub-units called podomeres.

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  21. Male cockroach differs from female cockroach in exihibiting……………… .

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