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The alternate contraction and relaxation...

The alternate contraction and relaxation of terogosternal muscles in cockroach

A

Makes the air to leave and enter the body of cockroach

B

Makes the blood to move from perivisceral sinus to pericardial sinus

C

Makes the mandibles move

D

Makes the best adhesion of plantulae and arolia

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AAKASH INSTITUTE-TEST 2-EXERCISE
  1. Mark the statement that is incorrect for digestive system of cockroach

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  2. Ootheca of cockroach is formed of secreted by

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  3. The alternate contraction and relaxation of terogosternal muscles in c...

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  4. In the male reproductive system of cockroach the seminal vesicles are ...

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  5. Mark the incorrect statement about cockroach.

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  6. Read the following statements and choose the correct option. Statemen...

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  7. Viruses belonging to genus Nucleopolyhedrovirus are the important comp...

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  8. Primary treatment of waste water is mainly a treatment.

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  9. The Ministry of Environment and Forests has initiated Ganga and Yamuna...

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  10. State True (T) or False (F) for the following statements. ...

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  11. The incorrect statement regarding biogas is

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  12. Acetic acid is used in preparation of vinegar. It is usually obtained ...

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  13. A wheat variety with high protein contents has been used as a donor fo...

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  14. In a region of France, Downy mildew of grapes was confined to large va...

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  15. Plants genetically identical to the original plant, produced during ti...

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  16. Select the wrong statement.

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  17. The development of several high yielding varieties of wheat and rice i...

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  18. Collection of genetic variability is required in plant breeding progra...

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  19. The genes in eukaryotes are said to be split as

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  20. Minisatellites

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