Plant Reproductive Systems: An Investigative Approach
Laura K. Thompson
Tested Studies in Laboratory Teaching, 2001, Volume 22
Abstract
This plant evolution exercise endeavors to move away from a purely observational approach to one of investigation. Students investigate the increasing use of air and animals for gamete and population dispersal that aided plant development on land. The first part of this chapter deals with a common woodland fern of the order Filicales. Students examine sporophyte and gametophyte plants, and experiment with air-borne spore release. The second part of this chapter has two main objectives dealing with the reproductive structures of angiosperms. First, students learn to recognize flower structures and variation in structural patterns. Second, students observe how floral structure and pollen size differ with two agents of pollination, wind and insects.
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