Having previously genetically engineered mice to lack melanopsin, the team first tested the pupillary light reflex on irises from these mice. âThat was a really exciting resultâthey didnât respond to the light,â says Tian Xue, a research associate with Yau. They also tested mice engineered to lack other light-capturing pigments, but all of them responded normally, suggesting that only melanopsin is required for the local pupil reflex.
The water of the Nile River provided a few things that were important to the growth of civilization in Ancient Egypt. The Ancient Egyptians needed water, as all humans do, to support life.Water from the Nile also attracted thirsty animals such as the water buffalo and camels. Water also was necessary for the growth of agriculture, the major economic activity of Ancient Egyptians.est Answer: The presence of the Nile River and the Nile River Valley in Ancient Egypt greatly influenced the culture of its people. The ancient Egyptians began with small settlements around the Nile River and were able to make permanent settlements only because of the presence of the Nile.
During the Spring Season, the Nile waters will flood the nearby mountains. When the waters that have fled the mountains go back into the River, it leaves the black rich fertile soil called silt deposits. This soil is called by the ancient Egyptians as âThe Gift of Nile,.The Egypt is filled with much of this rich fertile soil which can be used for raising crops successfully. The fertile soil is not the only gift provided by Nile. Nile presented several gifts to the ancient Egyptians.The ancient Egyptians got fresh drinking water and fresh water for bathing.he ancient Egyptians cultivated Flax, wheat and many more crops surrounding Nile and traded them. This trade helped the Egyptians to maintain the diplomatic relationships with other countries and made them to stabilize economically. Hence, Egypt was called as Gift of Nile.