Answer:
A crayfish
Explanation:
everything else is an insect
Regarding the factors of true labor, the the fetal pituitary releases oxytocin in response to estrogens.
<h3>What is oxytocin?</h3>
It should be noted that oxytocin means a hormone that is involved in childbirth. It is associated with trust and empathy.
In this case, regarding the the factors of true labor, the the fetal pituitary releases oxytocin in response to estrogens.
Learn more about oxytocin on:
brainly.com/question/14133775
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The answer is 1. Hope this answer was useful!