Home
Class 11
BIOLOGY
Assertion : Eggs of cockroach are encase...

Assertion : Eggs of cockroach are encased in capsules called ootheceae
Reason : Ootheca is a dark reddish to blackish brown capsule.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
B

The fertilised eggs of cockroach are encased in capsules called oothecae. Ootheca is a dark reddish to blackish brown capsule, about 3/8'' (8 mm) long. On an average, females produce 9-10 oothecae, each containing 14-16 eggs.
Promotional Banner

Topper's Solved these Questions

  • RESPIRATION IN PLANTS

    NCERT FINGERTIPS|Exercise Respiration In Plants|130 Videos
  • TEST PAPER

    NCERT FINGERTIPS|Exercise Test Paper 3|50 Videos

Similar Questions

Explore conceptually related problems

Assertion: Spores in mosses are contained within the capsule. Reason: Spores are formed by mitotic division in mosses.

Assertion : During the fermentation of grape juice , a reddish brown coloured crust is formed. Reason : Impure potassium hydrogen tartrate is of reddish brown colour and it is known as argol.

Assertion : The glomerular filtrate resembles the protein free plasma in composition and osmotic pressure . Reason : The glomerular capillary wall and inner membrane of Bowman's capsule are impermeable to large molecules .

Assertion: The sporogonium of Riccia is the simplest among the liverworts. Reason: Sporophyte consists of capsule only.

Assertion: The head of cockroach is hypognathus. Reason: The proximal part of lower lip of cockroach is called pastmentum.

Assertion. Liver is the largest gland of the body. The hepatic lobules are the structural and functional units of liver contaning hepatic cells arranged in the form of cords. Reason. Each lobule of the liver is covered by a thin connective tissue sheath called the Glission's capsule. The bile is secreted by hepatic cells.

Assertion Sphagnum is slowly carbonised, compressed and fossilised over thousands of years to produce a dark spongy mass called peat Reason. Peat helps to keep soil porous and it also improves water holding capacity of soil

NCERT FINGERTIPS-STRUCTURAL ORGANISATION IN ANIMALS-Structural Organisation In Animals
  1. Which one of the following statement is true for cockroach ?

    Text Solution

    |

  2. Match the following and choose the correct option {:("A.","Adipose t...

    Text Solution

    |

  3. Match the following and choose the correct answer {:("A.","Hermaphro...

    Text Solution

    |

  4. Match the following with reference to cockroach and choose the correct...

    Text Solution

    |

  5. Match the following and choose the correct answer {:("A.","Touch","(...

    Text Solution

    |

  6. Assertion : Stomach and intestine of our body has columnar epithelium ...

    Text Solution

    |

  7. Assertion : Cell junctions are present in the epithelium and other ti...

    Text Solution

    |

  8. Assertion : Connective tissues are the most abundant and widely distri...

    Text Solution

    |

  9. Assertion : The cells of connective tissues except blood secrete fibre...

    Text Solution

    |

  10. Assertion : Tendons attach one bone to another bone Reason : Ligamen...

    Text Solution

    |

  11. Assertion : Smooth muscles are known as involuntary muscles Reason :...

    Text Solution

    |

  12. Assertion : Neurons protect and support the neuroglial cells Reason ...

    Text Solution

    |

  13. Assertion : Setae are absent in clitellum Reason : Setae help in loc...

    Text Solution

    |

  14. Assertion : Blood glands are present in earthworm Reason : Earthworm...

    Text Solution

    |

  15. Assertion : Earthworm are known are known as friends of farmers Reas...

    Text Solution

    |

  16. Assertion : Excretion in cockroach occurs by Malpighian tubules Reas...

    Text Solution

    |

  17. Assertion : Eggs of cockroach are encased in capsules called ootheceae...

    Text Solution

    |

  18. Assertion : Cockroach shows sexual dimorphism Reason : The female co...

    Text Solution

    |

  19. Assertion : The alimentary canal of the frog is short Reason : Frogs...

    Text Solution

    |

  20. Assertion : There is hepatic portal system in frog Reason : It is ve...

    Text Solution

    |