Testing a Food-Chain Hypothesis
| QUESTION: | How are members of the food chain affected by marine protected areas (MPAs)? |
| Hypothesis: | MPAs affect a food chain in ways that help the most basal member of the food chain. |
| Data: | The food chain consists of lobsters (fishing for which is banned in MPAs), who eat urchins, who in turn eat kelp. Students are presented with seven variables including plot numbers, times that the sample was taken, and densities of each species in each plot. |
| Challenge: | Plot three predictions drawn from the hypothesis by graphing the appropriate variables for each prediction. |
