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All the following statements are correct...

All the following statements are correct about the reproductive system of earthworm, but one is wrong. Which one is wrong?

A

Fertilization is external and cross fertilization

B

There are two pairs of testes in 10th and 11th segments and one pair of varies attached at the intersegmental septum of 12th and 13th segment

C

Accessory glands are present on the ventral surface of 17th and 19th segments

D

Earthworm is unisexual

Text Solution

Verified by Experts

The correct Answer is:
D
Earthworm is unisexual
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AAKASH INSTITUTE ENGLISH-STRUCTURAL ORGANISATION IN ANIMALS (CONTD . . .) (ANIMAL MORPHOLOGY)-Assignment (Section-B)
  1. Tastes in earthworm are present in the segments

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  2. During copulation in earthworms, sperms are transferred between copula...

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  3. All the following statements are correct about the reproductive system...

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  4. The flow of blood in the dorsal blood vessel of earthworm is

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  5. In Pheretima, clitellum is primarily meant for

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  6. Lateral oesophageal hearts in earthworm connect

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  7. Flow of blood in the ventral vessel of earthworm is

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  8. The ventral surface of mature earthworm can be distinguished from dors...

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  9. Which of the following parts of gut occupies most part of the 8th segm...

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  10. Photoreceptors (phaosomes) in earthworm occur in

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  11. By which of the following nephridia excretion is exonephric?

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  12. Earthworm is

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  13. Pharyngeal nephridia of Pheretima are found in segments

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  14. Periplaneta americana and Blatta orientalis differ mainly from each ot...

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  15. In cockroach, the body in spite of being covered by an exoskeleton of ...

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  16. Wings are vestigial in (a) Male Blatta (b) Female Blatta (c) Male ...

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  17. In cockroach, elytra are articulated to the tergiles of (a) Prothorax...

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  18. Which of the following affect the heat of reaction?

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  19. Position of head in relation to body axis of cockroach is known as (a)...

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  20. Endoskeletal structure present in the head is (a) Apodeme (b) Tentor...

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