Responding to xenophobic concerns, Congress passed an emergency law restricting immigration in 1921. Among other provisions, the Act established a quota (a proportional share of a total) for nationalities on the basis of their numbers in the U.S. in 1910.
The missing detail is: a quota.
I used this for the answer and got it right I did this question before so their ya go
The finger like projections in the small intestine are called intestinal villus or villi.
