Answer:
The answer is B.
Explanation:
The United States has been progressively expanding towards the southwest since the start of the country.
The fingerlike projections are villus.
a type of reproduction in which a new organism is produced from one parent and has hereditary material identical to the parent organism, reproductive process that produces four haploid sex cells from one diploid cell and ensures offspring will have the same number of chromosomes as the parent organism. i hope this helped <3
