A younger student is trying to push a heavy box down the hallway. They are pushing as hard as they can, but haven’t moved the box. Have they done any work? Why or why not?

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.