09-11-2012, 01:11 PM
I haven't gone through all the specific exam feedback yet so I don't know if this has already been posted, and I haven't taken my test yet so I don't know how important this is, but this is a website that really helped me understand primary and secondary growth of plants. It really helped me visualize anything and was presented in this great, easy-to-understand format that would help many different types of learners. Just thought I'd share it with y'all! 
Activity 31.2 Primary and Secondary Growth
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Activity 31.2 Primary and Secondary Growth