Plants are autotrophs, not heterotrophs. They possess chlorophyll and produce their own food through photosynthesis using sunlight, water, and carbon dioxide.

Multicellular eukaryotes: Kingdom Plantae is defined as a group of organisms that are both multicellular (composed of many specialized cells) and eukaryotic (containing a nucleus and membrane-bound organelles).

Alternation of generations: All plants exhibit a life cycle that alternates between two distinct phases: a haploid sexual phase (gametophyte) and a diploid asexual phase (sporophyte).

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