By looking at them with the microscope and analyzing it and then use the zoom and zoom it in more to get a better view of the molecules
Chordates (phylum Chordata) are animals which are either vertebrates or one of several closely related invertebrates. They are united by having, for at least some period of their life cycle, a notochord, a HOLLOW DORSAL NERVE CORD
Explanation:
dependent is what ur measuring, independent is the diff salt concetration
and the control group is what stays the same like the water or the plant. not sure, it's not rlly clear
they are both two types of grasslands