.png){kind=icon}
Life: The Science of Biology 12e Student Resources is no longer available and it was replaced by Biology and Life Sciences.
Media Clip 25.2: Diatoms in Action
This video shows a variety of diatoms (unicellular algae), with visible cell walls.
Textbook Reference: Key Concept 25.2 Major Lineages of Eukaryotes Diversified in the Precambrian