Answer:
parasitism
Explanation:
when one organism gains something and the other is affected in a negative way than the organism gaining from the relationship it is considered a parasite.
The best and most correct answer among the choices provided by the question is the third choice. A universal system of measurement should be used in collecting data. I hope my answer has come to your help. God bless and have a nice day ahead!
Congress created the EPA in 1969.
Mitochondria, the power house of the cell
