BLG 144 Chapter 30: Chapter 30
27 Dec 2017
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Chapter 30 - green algae and land plants. *green algae are an important source of oxygen and provide food for aquatic organisms; land plants release oxygen, hold soil and water in place, build soil, moderate extreme temperatures and winds, and provide food for terrestrial organisms. *land plants were the first multicellular organisms that could live with most of their tissues exposed to the air. * once plants were able to grow on land, a sequence of important evolutionary changes made it possible for them to reproduce efficiently even in extremely dry environments. Green algae are important photosynthetic organisms in aquatic habitats particularly lakes, ponds, & other freshwater. Land plants are key photosynthesizes in terrestrial environments. The transition from aquatic to terrestrial life occurred when land plants evolved from green algae. Land plants were the first organisms that could thrive with their tissue completely exposed to the air instead of being partially or completely submerged.
