1. Student A wants to obtain the total magnification of the specimen. Which two
parts of a microscope combine to give a
magnified view of the specimen? ___
A. Eyepiece and objective lens
B. Light source and objective lens

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.