1.) Better roads
2.) Tracks si it was better to navigate
Answer:
Because America wasn't discovered when people started using Africans as slaves.
Explanation:
Answer:
True
Explanation:
During the late 1950s and early 1960s, Werner Arber and several others extended the work of an earlier Nobel laureate, Salvador Luria, who observed that bacteriophages (viruses that infect bacteria) not only induce hereditary mutations in their bacterial hosts but at the same time undergo hereditary mutations themselves. Werner Arber’s research was concentrated on the action of protective enzymes present in the bacteria, which modify the DNA of the infecting virus e.g., the restriction enzyme, so-called for its ability to restrict the growth of the bacteriophage by cutting the molecule of its DNA to pieces.
Answer:People began to settle in areas with abundant natural resources. For thousands of years, people have been attracted to a part of the world archaeologists later called the Fertile Crescent. ... Some of the best farmland of the Fertile Crescent is on a narrow strip of land between the Tigris and the Euphrates Rivers.
Explanation: