Billy put some soil into a glass jar and then planted a small green plant in the jar. He punched a few holes in the lid and then covered the jar. He placed the jar on the windowsill so that it would get a lot of sunlight. After several weeks, the plant died .What mistake did Billy make that made the plant die? .

The rate that would change would be the  searching efficiency/attack rate. there are only two other rates in this model: the  growth rate of prey, and the  predator or consumer mortality rate.the  searching efficiency/attack rate is what indicates how effectively can a predator capture its prey whether in the searching process or actual capturing/attacking process. 

Ithink the answer you're looking for is potato chips.