Answer:
The process of prenatal development occurs in three main stages. The first two weeks after conception are known as the germinal stage, the third through the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.
Explanation:
Lol funny question.
But to answer it, yes in order to stop a piece of paper from folding or creasing you put it in a folder, or maybe a binder. You can even lay this piece of paper on a table that won’t be touched/untouched. So therefore it will stay flat and not have any creases or bends or folds. Also a folder keeps the paper clean from getting messy
Dementia and Delirium are two somewhat broad biological phenomenon that are biological causes of mental illness. These interfere with biological processes with the brain. If we wish to be more specific, Cancers, Alzheimer and Parkinson's Disease can affect the brain by pressing on important aspects (Brain Cancer's) and/or cause progressive degeneration (Alzheimer and Parkinson's)
There are two kinds of digestion: mechanical and chemical. Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.
