BIO SCI 94 Chapter 31: Chapter 31 - Green Algae & Land Plants

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 94
• Professor: Nancy Burley

Document Summary

Chapter 31 - green algae & land plants. Adaptations allowed green algae and land plants to colonize and dominate the land. The transition to life on land led to . Using animals to carry pollen and seeds. Ecosystem - consists of all the organisms in a particular area, along w/ the physical components of the environment (e. g. atm, precipitation, sunlight, etc) Green algae and land plants provide ecosystem services b/c they enhance life- supporting attributes of the atm, surface water, soil, and other physical components of an ecosystem. Plant tissues take up and retain water. Land plants are the dominant primary producers in terrestrial ecosystems. Convert energy in sunlight chemical energy. Key in carbon cycle (take co2 and reduce it to make sugars) Therefore, loss of land plants lead to increase in co2 in atm and high temps. Food - artificial selection - actively selecting individuals w/ the largest and most nutritious seeds and leaves.