All land plants are believed to share what?
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All land plants, also known as embryophytes, are believed to share a common ancestor that evolved roughly 500 million years ago, during the Ordovician period. This ancestor was most likely a green alga that evolved the ability to live on land and ultimately gave rise to all modern-day land plants. Embryophytes are characterized by several unique features, such as the presence of a multicellular embryo and the development of specialized tissues and organs, including roots, stems, and leaves, which allow them to efficiently absorb water, nutrients, and sunlight. Additionally, all land plants undergo alternation of generations, a complex reproductive strategy involving both haploid and diploid stages that ensures genetic diversity and survival of the species.
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