evolution of vascular plants: the ferns - part 9 of 28. describes the evolution of vascular systems in land plants. the highly specialized structures that occur in vascular plants are shown through investigation of the fern. explains the adaptive advantag - rhizoid stock videos & royalty-free footage00:28Evolution of Vascular Plants: The Ferns - part 9 of 28. Describes the evolution of vascular systems in land plants. The highly specialized structures that occur in vascular plants are shown through investigation of the fern. Explains the adaptive advantag
t/l peas (pisum sativum) germinating underground, side view - rhizoid stock videos & royalty-free footage00:23T/L peas (Pisum sativum) germinating underground, side view
t/l pea (pisum sativum) germinating underground, side view - rhizoid stock videos & royalty-free footage00:21T/L pea (Pisum sativum) germinating underground, side view