In a food chain, which of the following is considered as a primary producer?
A
Heterotrophs
B
Autotrophs
C
Parallel
D
Horizontal
Correct Option:
B
Explanation
Primary producers manufacture organic food from inorganic substances, generally using sunlight through photosynthesis. Plants, algae, and many photosynthetic microorganisms are therefore autotrophs and form the first trophic level of most food chains.
