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The lateral hearts in earthworm...

The lateral hearts in earthworm

A

are situated in segments 7 and 9

B

are situated in segments 6 and 8

C

are situated in segments 8 and 10

D

are situated in segments 6 and 11

Text Solution

Verified by Experts

The correct Answer is:
A
A pair of large, thick and muscular vertical vessels, called hearts are present in each of the segments 7, 9, 12 and 13 in earthworm. Heats of `7^(th)` and `9^(th)` segment are called lateral hearts that connect dorsal and ventral vessels only.
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NCERT FINGERTIPS-STRUCTURAL ORGANISATION IN ANIMALS-Structural Organisation In Animals
  1. Match column I with column II and select the correct option from the c...

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  2. Which of the following is absent in the coelomic fluid of earthworm ?

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  3. The lateral hearts in earthworm

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  4. Blood vessels in Pheretima, which have valves are

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  5. In Pheretima, there are red coloured round bodies in 4^(th),5^(th) and...

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  6. The figure showing nephridial system of earthworm is given here. Ident...

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  7. Which of the following statements is correct about excretion in earthw...

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  8. Primary function of enteronephric nephridia of Pheretima is

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  9. Which of the following statements is incorrect about the nervous syste...

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  10. Which of the following structures is correctly matched with its descri...

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  11. Which of the following is incorrect fot Pheretima ?

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  12. In the given diagram of the reproductive system of earthworm, Identify...

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  13. Which one of the following structures in Pheretima is correctly matche...

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  14. Match column I with column II and select the correct option from the c...

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  15. The given figure represent heat region of cockroach. In which one of t...

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  16. Which of the following figures shows the mandibles of cockroach ?

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  17. In the mouth parts of a cockroach, the labium forms ul("I") whileul("i...

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  18. Complete the following flowchart by selecting the correct option

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  19. In the given diagram of a leg of cockroach, parts have been indicated ...

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  20. The given figure represents posterior region of male cockroach. Indent...

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