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In the external aperture , of body of H...

In the external aperture , of body of Hirudinaria granulosa
I.mouth is triradiate aperture , opens into preoral chamber of anterior sucker .
II.posterior sucker is formed by the complete fusion of last seven body segments .
III.anus is present in 31st segment , which is mid-dorsal in position .
IV.female genital pores are mid-ventral in position between 3rd and 4th annuli of 11th segment .

A

I , II and III

B

I and II

C

II and IV

D

III and IV

Text Solution

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The correct Answer is:
B
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ARIHANT NEET-ANIMALIA-II (HIGHER INVERTEBRATES) -Chapter Exercises B) Medical entrances special format questions (Statement based questions)
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  2. In the external aperture , of body of Hirudinaria granulosa I.mouth...

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  3. Metamerism I. increases the efficiency of body movement . II.is th...

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  4. Class-Hirudinea of Annelida I.lacks parapodia and setae . II.inclu...

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