Answer:
Trilobites
Explanation:
The Phanerozoic Eon is characterized by the presence of organisms that possessed hard shells as an adaptation to the environmental conditions. Among these organisms, the most common hard-shelled animals were the trilobites.
Trilobites were present during most of the Paleozoic Era, which belongs to the Phanerozoic Eon. These animals were marine organisms with remarkable and unique phenotypes.
The body of a trilobite was composed of three segments: the cephalon, the thorax, and the pygidium (tail). In addition, they possessed an exoskeleton composed of chitin, which was the reason behind their hard shells. They shed their exoskeletons to be able to grow.
Trilobites are currently extinct.
Africans who had sold other Africans to slave traders
I would have to go with reservation as they did put the native Americans on reservations so the could continue living their lifestyle
I believe that the Answer would actually be A they were most concerned about faith and religion
The Yuan Dynasty of China had several inventions and accomplishments during their reign (1271 to 1368).
As far as concepts and inventions, the Yuan Dynasty was really the first in China to use and print paper currency (money).
They also made a very accurate calendar. It was 365 days long and was used for over 350 years.
Math was also a great accomplishment for the Yuan Dynasty. Chinese Algebra was at a high level at this time.
Like currency printing, the Chinese of this period also invented a moveable type printing system. This was a terrific invention because it was really efficient and made books more accessible to all types of people. Farmers really benefited from this invention, because they were able to access agricultural books that helped them with farming.
