A student recorded the height of each student in the school. She then made a bar graph of her results. She observed that the results form a bell-shaped curve. The student could use her graph as evidence to support which argument?

That height was affected by multiple pairs of genes on different chromosomes.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.