Question

Study of amphibians (frogs, salamanders) produced the following results (graph). Note: 'traffic density' refers to the number of cars using roads over time. Interpret the results from the graph. What is one hypothesis that could explain the pattern? Describe an experiment that would allow you to test the hypothesis.

Answer 1

To test the hypothesis, an experiment can be conducted where the behavior and survival rates of frog eggs are observed and compared in tanks with and without fish.

Step-by-step explanation:

The hypothesis that frogs rely on chemical detection of predator fish in addition to visual detection can be tested through an experiment.

An experiment to test this hypothesis could involve providing a controlled environment where both visual and chemical detection are manipulated.

For example, two tanks with frog eggs could be set up with one tank having fish and the other without fish. The tank with fish could have a barrier that allows the chemical cues to pass through, while the tank without fish could have a barrier that blocks the chemical cues. The experiment would involve observing and comparing the behavior and survival rates of the frog eggs in both tanks.