Question

ranchers in san angelo, tx want to determine if a pesticide will be effective against grasshoppers that feed on their pasture grass. they collect 1500 grasshoppers from the wild and test them for the gh131 gene, which determines whether or not they are susceptible to certain pesticides. the sample for this study is:

• the rancher who owns the pastures
• the gh131 gene
• all grasshoppers living near san angelo
• the 1500 grasshoppers collected for the study

Explanation:

In a study, a sample is the subset of the population that is actually studied. Here, the population of interest could be grasshoppers near San Angelo, and the 1500 collected grasshoppers are the sample (the subset studied). The rancher is not the sample, the gene is not the sample, and all grasshoppers near San Angelo would be the population, not the sample.

Answer:

D. The 1500 grasshoppers collected for the study (assuming the options are labeled A - D with D being this option; if original options had labels, use the correct label with the text, e.g., if this was option D, then "D. The 1500 grasshoppers collected for the study")