HELP!!!!!!!!!!!!LIMITED TIME!!!!!!!!!!!!!!!
Given the following phylogenetic tree, which group of invertebrates
evolved the earliest in the Earth's history?

Select one:
Arthropods
Flatworms
Sponges
Cnidarians

HELPLIMITED TIME Given the following phylogenetic tree which group of invertebrates evolved the earliest in the Earths history Select one Arthropods Flatworms S class=