Answer:
This is due to the property of contractility.
Answer by JKismyhusbandbae: A) Plan B
Why: Plan B is the most effective emergency medication for preventing unwanted pregnancies.
<span>After a fetus has developed for three months, what is its skeleton made of :
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<span>The bones will be formed from the centers of ossification, cartilage will gradually be replaced by bone. during this time, ossification of the spine <span>continues.
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