How are trees and ferns not alike?

trees and ferns are alike because there both green in some way and makes their own food using photosynthesis. they are both vascular and that means that they have vessels and both have plant cells.

I am pretty sure they are trees.... SECOND ANSWER: There seems to be some disagreement whether palm trees should be called trees at all (having no branches but only trunks, leaf stems and leaves)...

yes

They are both alive, both need the sun, both need nutrients and water.

Both produce and grow from spores.