Carbohydrates, Lipids, Proteins (IB Biology)

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lymphoid says:

you dont need carbohydrates

ksmg1997 says:

Haha, the end. Very helpful though.

BenjinBleach Foxy says:

my teacher made me watch all this
pretty good

Cynthia Cardenas says:

This video had me dyin XD

Alexis Roberts says:

you're a life saver.

katyqmsp says:

Organic consists of carbon and hydrogen not just carbon

Jay Patel says:

Are you making any videos for the new 2016 exams?

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