Algae vs Angiosperms - What's the difference?
As a noun algae
As a proper noun angiosperms is
(biology) Any of many aquatic photosynthetic organisms, whose size ranges from a single cell to giant kelps and whose form is very diverse; some are eukaryotic and some prokaryotic; includes the seaweeds.
* (term) is a non-standard plural.
(a clade diagram)
* (clade) Magnoliophyta, Angiospermae, flowering plants
* (clade) eudicots, magnoliids, monocots - clades; - unassigned genera