Answer:
Allele
Explanation:
An allele is a variant form of a gene
That the disease symptoms caused by beriberi are directly related to diet.
Organ then Organ system Then tissue and etc.
New England was a neighbor to North Africa 220 millions ago.
As looked down upon by the space, it is found that new England and North Africa are immediate neighbors. It took over millions of years or the continents to move apart. The gap left between them was eventually filled by the Atlantic Ocean.