Select the option having correct matching of the organism given in Column I with the mode of reproduction in Column II: Column I {0.2cm} 
Reproduction methods explained.
- Leishmania: Binary fission (P-3).
- Spirogyra: Fragmentation (Q-4).
- Planaria: Regeneration (R-1).
- Plasmodium: Multiple fission (S-2).
Step 2: Conclusion: The accurate pairing is option (C): P-3, Q-4, R-1, S-2.
What changes are observed in the uterus:
(i) Subsequent to the implantation of the zygote and
(ii) If an egg does not get fertilized?
Name the part performing the following functions in the human female reproductive system:
(i) Production of eggs
(ii) Site of fertilization
(iii) Site of implantation
(iv) Entry of the sperms
Why are testes in human males located outside the abdominal cavity in scrotum?