|Middle School - Life Science - Prentice Hall- Pearson|
|Topics of learning Science for 7th and 8th graders . Grade 7 and Grade 8 - Middle School The sub-topics for this group is based on a book " Prentice Hall Science Explorer " by Pearson. http://www.phschool.com/webcodes10/index.cfm?wcprefix=chk&wcsuffix=1000&area=view|
The Sex Lives of Nonvascular Plants: Alternation of Generations - Crash Course Biology #36
Hank introduces us to nonvascular plants - liverworts, hornworts & mosses - which have bizarre features, kooky habits, and strange sex lives. Nonvascular plants ...