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Answer:
Each person needs to contribute is $75.
Step by step explanation:
It is given that the number of people is 25. Each of them would need to contribute $135.
Total amount contributed by 25 people is the product of 25 and 135.
Total amount contributed by 25 people is $3375.
Now 45 people has to contribute the same amount $3375.
If 45 people donate $3375, then each people donate
Therefore, each person needs to contribute is $75.
Oxytocin
When the critical hormone oxytocin is released in high enough concentration by the mother's pituitary gland, the mother's uterus begins periodic contraction.
Oxytocin is a peptide hormone produced by the hypothalamus and released into the blood stream by the posterior pituitary. Oxytocin works on certain organs in the body such as the breast and uterus. Oxytocin influences important functions of the reproductive system, including causing contraction of the cervix and uterus during labor, lactation, and sexual reproduction.