Final answer:
An autotroph is an organism that can produce its own food using energy from sunlight or inorganic substances. Red Algae and a Venus Flytrap are examples of autotrophs.
Step-by-step explanation:
An autotroph is an organism that can produce its own food using energy from sunlight or inorganic substances. Out of the given choices, Red Algae and A Venus Flytrap are examples of autotrophs. Red Algae undergoes photosynthesis to convert sunlight into energy, while a Venus Flytrap traps insects for nutrients.
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