All plants are autotroph!Hope this helps!!!:)
An autotroph produces its food while a hertotroph cannot make its own food (example human)
a cactus, a dried up plant, and maybe grass but i doubt it
Common Kelp, Giant Kelp, Giant String Kelp, Crayweed, Bubbleweed, Sargassum, Bull Kelp, Phytoplankton, Corraline algae, filamentous turf algae, zooxanthellae, seaweed, cyanobacteria, anglosperms,...
eat