<h2>Answer:</h2>
The thin layer known as amniotic sac which is filled with amniotic fluid surrounds and protects the fetus during the pregnancy.
<h3>Explanation:</h3>
- A thin-walled sac that surrounds the fetus during pregnancy.
- The sac is filled with liquid made amniotic fluid which is made by the fetus .
- This protects the fetus from injury.
- It also helps to regulate the temperature of the fetus.
Answer:
Increased use of alcohol, change in behaviors, underlying mental health disorder
Explanation:
4.4 million dollars a year
<span>When a person's activity level increases, the internal forces in the body also increase, placing stress on the body.</span>