Y5esor3Shekimk Y5esor3Shekimk

12-03-2016
Biology

contestada

What do all ecosystems have ?
A. biotic p21 only
B. abiotic p21 only
C. producers only
D. biotic and abiotic p21

Respuesta :

NyeinLay NyeinLay

12-03-2016

I pretty sure that it include both biotic and abiotic. But "C" is wrong. Now your answers are between "A,B and C"

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