Gestation is 9 months in humans. birth and labor can be any length of time
Answer:
The differnece between nagative and postitve is negative can stress o=you out and Positve stress can bring you happness and help you be happy
Explanation:
One of the main reasons why life expectancy dramatically rose in the past century was due to different factors. One that surely contributed to them was better access to medical equipment and medical advances themselves. As well as better nutrition that was available to the common person.
I believe the answer is d
Mostly fish or aquatic animals can breath though there skin and or gills.
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