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The Introduction of Plants (from an evolutionary perspective)

*** Note: these lectures are under the heading "11. The Evolution of Life On Earth"***

Plant Phylogeny: The Colonization of Land

How long ago did plants colonize land?

What was the major problem faced by the earliest plants attempting to colonize land?

List the seven structures (adaptations) plants evolved to be successful on land

What's co-evolution? Provide one example.

List the similarities shared between Charophytes and present day plants.

Charophytes are a type of _____ algae (what color?)

Plant Phylogeny and Alternation of Generations

Throughout this lecture consider the following... What's "alternating" in Alternation of Generations?

Again, how long ago did algae evolve into plants?

What tissue evolved around 400 million years ago making up the veins, or a vascular tissue?  
     x______ & p______

Are mosses vascular or nonvascular?

Why are mosses so short?

Why do mosses live in wet shady areas?

What does "gymno" mean?

What does "phyte" mean?

What are the two differences Dr. Wolfe brings up concerning spores and seeds?

What does a spore grow into?