![image](myerspel4e_fig_8_15.jpg)
FIGURE 8.15 Group differences and environmental impact Even if the variation between members within a group reflects genetic differences, the average difference between groups may be wholly due to environment. Imagine that seeds from the same mixture are sown in different soils. Although height differences within each window box of flowers will be genetic, the height difference between the two groups will be environmental. (Inspired by Lewontin, 1976.)
(Inspired by Lewontin, 1976.)