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Signals for parturition originate from:

1. Both placenta as well as fully developed foetus
2. Oxytocin released from maternal pituitary
3. Placenta only
4. Fully developed foetus only

Correct answer: Both placenta as well as fully developed foetus

Solution

Signals for parturition originate from both the placenta and the fully developed foetus, which work together to initiate the process of childbirth.

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