Main Idea Details
Introduction to Plants 213
Plant Evolution
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Plant
Adaptations
to Land
Environments
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on page.
Sequence the evolution of plants by placing the following
information in the correct boxes below.
- algae at edges of seas adapted • no plants
to life on land • simple plants appear - algae in oceans
Section 21.1 Plant Evolution and Adaptations (continued)
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Identify the 6 characteristics of the present-day members of the
algae and plant groups.
- •
- •
- •
Organize the plant organs by completing the table below. The first
row has been filled in for you.
1 billion years ago 400 million years ago
Location Purpose Plant organ?
cuticle on stems
and leaves
reduce
water loss
no
leaf grows
from stem
root
stem
seed protects
embryo from
drying