Answer:
Just as chromosomal abnormalities cause the majority of miscarriages, certain chromosomal problems and birth defects can increase the risk that a baby will be stillborn. ... Chromosomal abnormalities are usually determined at conception, but birth defects can be caused by environmental influences during pregnancy.
Explanation:
Answer:
B Heart and lungs
Explanation:
The thoracic cavity is another term for the chest cavity. It is enclosed by the ribs, spine, and breast bone, and is separated from the abdomen by the diaphragm.
It contains the heart, lungs, and the esophagus, and the blood vessels that supply them.
<span>bones act as lever arms. joints act as pivots. </span>
Answer:
4
Explanation:
Susan won't be feeling normal sleep nor normal heart rate because sleep deprivation is a serious issue. She would have an upset stomach and might even have a diarrhea.
The answer is most probably C or none .
