Just took the test the answer is definitely C. <span />
Answer:
The crusades created standardized methods of taxation and increased European trade.
Rods and cones convert light to neural signals which the nervous system can use. ... The 100 million rods are locates in the retina away from the fovea, so they carry out peripheral vision ("side" vision towards the edge of the visual field). Figure 6 shows the distribution of rods and cones on the retina.
Answer:
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Explanation:
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