Identify the groups on the phylogeny that correspond to the eutherian (sometimes called placental) mammals and the marsupial mammals. Which two taxa are eutherians?

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.