Answer:
hope this helps
Explanation:
About 95 percent of the time, Down syndrome is caused by trisomy 21 — the person has three copies of chromosome 21, instead of the usual two copies, in all cells. This is caused by abnormal cell division during the development of the sperm cell or the egg cell.
Answer:
38.2M Cases and 1.09M Deaths.
Explanation:
The Outbreak started in China and spreaded into the United States and is now a pandemic.
Living things get energy/food from the sun through a process called Photosynthesis
it's the process by which living organisms manufacture food in the present of sunlight, oxygen and some other vital nutrients.that is Carbon dioxide etc
A. Liquids
The earth’s outer core is a fluid layer approximately 2,400km thick
D - the chipmunk population would likely continue to increase
