Question

1. the test results below indicate the presence of which nutrient? 2. which of the following shows the results that you would get if you tested beef using the four tests in the gizmo?

Explanation:

1. Without seeing the actual test - result colors and knowing the typical test color - change indicators for each nutrient. However, a positive biuret test (purple color) indicates protein presence. Since no test - result details are given, we assume based on common knowledge.
2. Beef is rich in protein. A positive protein test would be expected. Without seeing the options for the second question, we can only assume that the correct answer for the second question would show a positive protein - test result for beef.

Answer:

1. protein
2. (No options provided for a full answer, but it should be the option showing a positive protein - test result for beef)