Sunday, March 3, 2013

Plant Diversity

Plant Diversity



Summary

This video explains plant diversity starting with the abiotic and biotic factors as well as the sexual reproduction and overview of each group of plants.  Byrophytes, Pteridophytes, Gymnosperms, and Angiosperms are the four groups of plants and this video explains all the adaptations of each group from pre-history to the present. The video goes chronologically and explains each type of group when it developed in contrast to the other groups of plants. It uses dividing factors like vascular tissue, flowers, the ability to conserve water, leaves, roots, fruit, spores, etc. A fun overview video with a good tune to go along with.

Relevance
In class, we are currently learning about the different types of plants and the grouping factors as well as the adaptations for each. We also learnt about plant reproduction and the various types of plants that are in each group like mosses, pine trees, etc. Also, the video has a few rudimentary cladograms that show the evolution of the groups relative to the other groups of plants. We are reminded about the sexual and asexual reproduction in plants and the different types of factors that can affect a plant's evolution and life. Well known plants that are mentioned in the video include hornworts, liverworts, and pine trees. 

Information
URL: http://www.youtube.com/watch?v=4yTjFJ5naas
Date Published: Feb. 11, 2013
Posted By: Luke Leach

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