Question 3 3.1
During the holidays a learner forgot to take his lunch box out of his school
bag. Inside were some uneaten sandwiches. At the beginning of the
following term his mother found black, furry patches growing on the left-over
bread.
bread
black patches
3.1.1
Identify the organism most likely to be responsible for the growth
on the bread.
(1)​

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.