What type of cell has a flagellum on its surface an animal cell, a viral cell, a plant cell, or a diseased cell

Cherries for sure do doubt   

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. 

Since the black bears eat both fruit and meat that makes them an omnivore