Question

which term describes what is happening in the amount per trial vs. time graph? a changing amount is eaten. nothing is consumed. a negative amount is eaten. a constant amount is eaten.

Explanation:

Step1: Analyze the graph

The graph has the amount consumed per trial on the y - axis and time (sec) on the x - axis. The line on the graph is horizontal, which means that as time changes (from 0 to 10 seconds), the amount consumed per trial does not change.

Step2: Evaluate each option

• Option A: The graph is horizontal, so the amount is not changing. So this option is incorrect.
• Option B: The y - axis value is non - zero (it's a positive constant), so something is being consumed. This option is incorrect.
• Option C: The amount consumed is a positive value (since it's on the y - axis representing amount consumed) and there's no negative amount being eaten as the graph is horizontal at a positive value. This option is incorrect.
• Option D: Since the graph is a horizontal line, the amount consumed per trial remains the same over time, so a constant amount is eaten. This option is correct.

Answer:

D. A constant amount is eaten.