Answer:
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
Explanation:
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Answer:
It was the Southern colonies.
Explanation:
Disease in colonial America that afflicted the early immigrant settlers was a dangerous threat to life. Malaria was deadly to many new arrivals, especially in the Southern colonies.
Answer:
The Freedmen's Bureau provided food, housing and medical aid, established schools and offered legal assistance.
