1.) how are arthropods vital to fruit crops?

2.) how are earth worms important?

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

About __ of the mass of the cell is water

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast