Answer:
you fill the hole so there is no more cat
Answer:
1) "Most germs are too small to cause disease" http://ecufrog.weebly.com/uploads/8/6/7/7/8677638/850_meet_the_microbes.pdf
2) "Some bacteria that live in your body are helpful. For instance, Lactobacillus acidophilus... helps you digest food, destroys some disease-causing organisms and provides nutrients." https://www.mayoclinic.org/diseases-conditions/infectious-diseases/in-depth/germs/art-20045289