Irritation Threshold is defined as the name applies. It is the threshold or maximum point at which an individual has become irritated or annoyed.
6. Lion
7.raccoon
8.rat
9. A keystone is a organism that helps define the entire ecosystem, and if the species were to disappear from the ecosystem no other species would be able to fill its ecological niche the ecosystem would be forced to radically change allowing new and possibly invasive species to populate the habitat.
Answer:
Proteins are broken down by the enzymes pepsin and peptidase, and by hydrochloric acid. Lipids are broken down by lipases.
C The rods will attract each other because they are both positively charged.
