The 1985 Mexico City earthquake measured a magnitude 8.0 on the Richter scale. The Richter scale uses the functior M() =log - Which equation relates the intensity of the 1985 earthquake, l, with the intensity of the
threshold quake,

Hii1977 cleaner shrimp are a species of shrimp that clean parasites from other organisms. fish allow the shrimp to eat the parasites in their mouth. the shrimp get a source of nutrition. the relationship between the shrimp and the fish is this association indicates that for the smaill aneser arecommensal, mutualistic, or parasitic for the begger one the anser are the shrimp and fish benefit each other , the shrimp harm the fish, or the fish do not benetit from the shrimp