Answer:
I think it is
Natural disasters are a concern for human, life and property, but there is nothing we can do to predict them or prepare for them
Larger animals may be going into hibernation and the berries wolves eat may be out of season.
Examples:
Respiratory System, (I think) Organ System, Circulatory System, Nervous System, etc.
Humans, chimpanzees, gorillas, and orangutans are all part of the family of organisms called Hominidae. So monkeys would be your best bet.