Home
Class 12
BIOLOGY
The head of cockroach is formed by the f...

The head of cockroach is formed by the fusion of six segments and shows and shows great mobility in all directions due to a flexible neck. The neck is a short extension.

A

head

B

prothorax

C

mesothorax

D

metathorax

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TEST 5

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|625 Videos

  • TEST 4

    AAKASH INSTITUTE ENGLISH|Exercise TYPE |1 Videos

  • TEST 6

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|712 Videos

Similar Questions

Explore conceptually related problems

Choose the incorrect statement about cockroaches from the following. (a) Antennae have sensory receptors that help in monitoring the environment. (b) The head is formed by the fusion of six segments and show great mobility in all directions and flexible neck . (c) The first pair of wings arise from the mesothorax and the second pair from the metathorax. (d) In males , the genital pouch or chamber lies at the hind end of abdomen bounded ventrally by 9th and 10th terga and dorsally by the 9th sternum.

Read the following statements about the cockroach and select the option : I. Forewings (mesothoracic) called tegmina are opaque dark and leathery and cover the hind wings . II. Head is formed by the fusion of eight segments and shows little mobility . III. Genital pouch in male is formed by 9^(th) and 10^(th) terga and 9^(th) sternum.

The figure shows a circular loop of radius a with two long parallel wires (numbered 1 and 2) all in the plane of the paper . The distance of each wire from the centre of the loop is d . The loop and the wire are carrying the same current I . The current in the loop is in the counterclockwise direction if seen from above. (q) The magnetic fields(B) at P due to the currents in the wires are in opposite directions. (r) There is no magnetic field at P . (s) The wires repel each other. (4) When d~~a but wires are not touching the loop , it is found that the net magnetic field on the axis of the loop at a height h above the loop is zero. In that case

The figure shows a circular loop of radius a with two long parallel wires (numbered 1 and 2) all in the plane of the paper . The distance of each wire from the centre of the loop is d . The loop and the wire are carrying the same current I . The current in the loop is in the counterclockwise direction if seen from above. (q) The magnetic fields(B) at P due to the currents in the wires are in opposite directions. (r) There is no magnetic field at P . (s) The wires repel each other. (4) When d~~a but wires are not touching the loop , it is found that the net magnetic field on the axis of the loop . In that case

The figure shows a circular loop of radius a with two long parallel wires (numbered 1 and 2) all in the plane of the paper . The distance of each wire from the centre of the loop is d . The loop and the wire are carrying the same current I . The current in the loop is in the counterclockwise direction if seen from above. . (5) Consider dgtgta , and the loop is rotated about its diameter parallel to the wires by 30^(@) from the position shown in the figure. If the currents in the wire are in the opposite directions, the torque on the loop at its new position will be ( assume that the net field due to the wires is constant over the loop).

The figure shows a circular loop of radius a with two long parallel wires (numbered 1 and 2) all in the plane of the paper . The distance of each wire from the centre of the loop is d . The loop and the wire are carrying the same current I . The current in the loop is in the counterclockwise direction if seen from above. (q) The magnetic fields(B) at P due to the currents in the wires are in opposite directions. (r) There is no magnetic field at P . (s) The wires repel each other. (5) Consider dgtgta , and the loop is rotated about its diameter parallel to the wires by 30^(@) from the position shown in the figure. If the currents in the wire are in the opposite directions, the torque on the loop at its new position will be ( assume that the net field due to the wires is constant over the loop).

Consider a standing wave formed on a string . It results due to the superposition of two waves travelling in opposite directions . The waves are travelling along the length of the string in the x - direction and displacements of elements on the string are along the y - direction . Individual equations of the two waves can be expressed as Y_(1) = 6 (cm) sin [ 5 (rad//cm) x - 4 ( rad//s)t] Y_(2) = 6(cm) sin [ 5 (rad//cm)x + 4 (rad//s)t] Here x and y are in cm . Answer the following questions. Figure 7.104( c) shows the standing wave pattern at t = 0 due to superposition of waves given by y_(1) and y_(2) in Figs.7.104(a) and (b) . In Fig. 7.104 (c ) , N is a node and A and antinode . At this instant say t = 0 , instantaneous velocity of points on the string named as A

AAKASH INSTITUTE ENGLISH-TEST 5-EXAMPLE
  1. How many of the below structures are paired and female cockroach?

    Text Solution

    |

  2. Which type of wings in cockroach are opaque, dark and leathery? a. for...

    Text Solution

    |

  3. The head of cockroach is formed by the fusion of six segments and sh...

    Text Solution

    |

  4. Which of the following structure is not present in or on the head of c...

    Text Solution

    |

  5. the tissue which exerts the greatest control over the body's responsi...

    Text Solution

    |

  6. all the following structures have cartilage except

    Text Solution

    |

  7. All of the following are specialized connective tissue except

    Text Solution

    |

  8. Find the correct option which includes connective tissue only

    Text Solution

    |

  9. Read the following statements. a. columnar or cuboidal cells get speci...

    Text Solution

    |

  10. Which type of epithelium has limited role in secretion and absorption?

    Text Solution

    |

  11. In monohybrid cross (Tt x Tt), percentage of homozygous plant is

    Text Solution

    |

  12. In epithelial tissue

    Text Solution

    |

  13. Read the following statements. a. A group of similar cells along with ...

    Text Solution

    |

  14. Male gametophyte of angiosperms/monocots is

    Text Solution

    |

  15. Mitochondria produce ATP and hence known as

    Text Solution

    |

  16. To sustain animal visit, the flowers have to provide rewards to the an...

    Text Solution

    |

  17. Arrange the following terms in the correct developmental sequence in f...

    Text Solution

    |

  18. Select the correct option w.r.t. structure and associated function.

    Text Solution

    |

  19. Choose the odd one w.rt. Agamospermy.

    Text Solution

    |

  20. The most common mode of entry of pollen tube into ovule is

    Text Solution

    |