Which of the following is an example of diffusion? A water freezing into ice

B sugar dissolving in a glass of water

C rain falling from the sky

D a stone sinking to the bottom of a lake

It is evolution, because we all have some of the same traits like eye color or shape or ears.

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.