Achange to one aspect of the food web cause multiple chain reactions within the system?

Yes, because if one animal goes extinct, contracts a disease, etc. it can cause harm to the other animals that consume it. If a species of rabbit in a forest became extinct then all the animals that consumed the rabbit species as apart of a regular diet will either have to find a new food source or go hungry, which can detriment other species and cause them to go extinct if their numbers are not plentiful.

Idon't know how to do this but maybe ask your mom or dad