Hello!
I believe a woman can be described pregnant after about 13 weeks or so, because this is when the unpleasant effects of pregnancy start to lessen, and the mother starts to get used to the hormonal changes.
I hope you found this helpful! :)
By going online and finding a punnet square program
Answer:
study the evolution of life
The person credited with first recognizing (in the 1860s) that living cells cannot arise spontaneously, but arise only from previously existing cells, is Rudolf Virchow.
He is German <span>physician and pathologist, who invented </span>the modern concept of pathological processes. <span>He used the cell theory to explain the effects of </span>disease in the organs and tissues of the body.