Discussion
The female genital pore of the earthworm Pheretima posthuma is located in segment :
Answer: B
The female genital pore of Pheretima posthuma is in segment 14.
The Indian earthworm has a single female genital pore on the mid-ventral side of the 14th segment, which lies within the clitellum (segments 14 to 16). The ova leave through it into the cocoon secreted by the clitellum.
The other numbers belong to other openings or none. The paired male genital pores are on segment 18, and the four pairs of spermathecal pores lie between segments 5 and 9. Segments 11 and 21 carry no genital pores, so neither can be the answer.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development