Autotrophs are described as capable of using which carbon source?
AOrganic carbon only
BNo carbon at all
CRadioactive carbon
DInorganic carbon
Answer & Solution
Correct answer: D. Inorganic carbon
1. What makes an organism an autotroph is its carbon source.
2. Photosynthetic and chemosynthetic organisms are grouped as autotrophs.
3. Autotrophs are capable of synthesizing their own food.
4. More specifically, they are capable of using inorganic carbon as a carbon source.
_Source: OpenStax Biology 2e (CC BY 4.0), Ch 46 'Ecosystems', sections 46.1-46.3_
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