Answer:
They built them on hills.
Explanation:
Of course, they did this to create a natural defense from the attack of foreign invaders. For example, the city of Rome itself was built on seven famous hills. Of course, through time they tried to fortify them as much as possible, but the main defense laid on the physical location of those cities.
Answer:
This process is called peptide bonding.
Explanation:
When two amino acids are joined together, a peptide bond is formed. The NH3 group of one amino acid and the COOH group of the other create the bond. In the process, water condenses and leaves (dehydration synthesis) and the peptide bond is formed.
Most tectonic plates move at .60 cm/yr and 10cm/yr
Lineal descent from an ancestor
Plessy v. Ferguson, 163 U.S. 537 (1896), was a landmark decision of the U.S. Supreme Court that upheld the constitutionality of racial segregation laws for public facilities as long as the segregated facilities were equal in quality – a doctrine that came to be known as "separate but equal".
