I don't understand help please ​

Variety of living organisms; includes genetic, species, and ecological types.

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.) chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Why were the results whit just water so much different than the trials with the detergent ?