2.2 Communities and Ecosystems

food chains and webs. Types of ecological pyramids. Bioaccumulation and biomagnification.

[@AlexandraKaminari]

I love how supportive you are throughout the lesson and how it's a short video that explains everything thoroughly without being boring. Amazing work!

[@ramanujanvenkatraman8540]

I have a test tomorrow and this helped a lot! Thank you! :)

[@skywalker5219]

how did u do ?¿

[@manishaguruprasad9612]

love this it was very helpful! thank you so much! :)

[@alexmorris4110]

thank you so much!! so helpful

[@Abcdcbatu]

thx

[@LJ-le3mr]

hi 2020

[@skywalker5219]

hi 2022 fatass

[@Abby-fz3bq]

Hi 2022

[@RyanHaka]

@@Abby-fz3bq Hi 2023

[@EmreMarinos]

hi m23