Plants in Our Lives: Predecessors of Plants

The video explores the development of the first plants, tracing them back to about 420 million years ago. It clarifies that early land plants were not tree-like but resembled mosses, lacking leaves, roots, or stems. Plants are believed to have evolved from green algae-like ancestors, which were photosynthetic organisms living in aquatic environments. The video also discusses the characteristics of algae, highlighting their ability to photosynthesize and categorizing them into three major groups based on pigment color: green, brown, and red.

How do green algae produce their own food?

What are the three major groups of algae categorized by?