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Bezzdna [24]
3 years ago
9

Explain the relationship of the fovea to cones in the retina?

Advanced Placement (AP)
1 answer:
Ira Lisetskai [31]3 years ago
5 0

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.



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Answer:

A. From the information given in the graph, we have;

The grain yield in pounds per acre for Europe in 1960 is approximately 1,600 Pounds per Acre

The grain yield in pounds per acre for Europe in 2015 is approximately 5,100 Pounds per Acre

The rate of change of grain yield in Europe ≈ (5,100 - 1,600)/(2015 - 1960) = 63.\overline{63} Pounds per Acre per year

The grain yield in pounds per acre for Sub-Saharan Africa in 1960 is approximately 800 Pounds per Acre

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The rate of change in grain yield in Sub-Saharan Africa ≈ (1,250 - 800)/(2015 - 1960) = 8.\overline{18} Pounds per Acre per year

Therefore, the grain yield per acre per year in Europe is increasing approximately 8 times the increase in Sub-Saharan Africa

B. Given that the rate of increase in the pounds of grain per Acre per year in Europe is progressively increasing above the average rate of world rate, the market for the grains produced in Europe will be partly the developing countries, thereby reducing the number of farms found in developing countries

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Where there is a decrease in grain yield, there will be an increase in activities to restore supply and therefore, a reduction in population

D. One limitation of the data in describing food security at a regional scale is the information required on the population figures in a given region involved in grain farming  

Explanation:

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