Answer:
Labor contractions are the periodic tightening and relaxing of the uterine muscle, the largest muscle in a woman's body. Something triggers the pituitary gland to release a hormone called oxytocin that stimulates the uterine tightening.
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Answer: Answer #2
Explanation: Due to muscle tissue being denser that fatty tissue, muscle mass weighs more than fatty tissue. This is why some who is short but really muscular will appear obese on a BMI machine. Brainliest please?
Answer:
the result of poor cardio respiratory endurance is Heart disease