3. Why did Mary Ann Shadd Cary go on to become the second Black American woman in the U. S. to earn a law degree
after her accomplishments in publishing, education, and the
U. S. Army?
5. When did Mary and her brother go to Canada?
6. Why did Mary's parents send her to another state, Penn-
sylvania, to attend school?

answer; many cognitive abilities emerge earlier in children than piaget though;

it might look like that the ideal way to research the health effects of trans fats is through a controlled experimental feeding trial. but these kinds of trial have several important limitations that the researcher must look into:

short in duration (this factor usually checks up on the intermediary risk factors rather than the actual outcomes of the disease)

limited dietary changes

only makes use of healthy participants