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Single-celled organisms, called

oceans today, and are capable of converting
through photosynthesis. *
into energy
A. land plants; oxygen
B. land plants; sunlight
C. phytoplankton; oxygen
D. phytoplankton; sunlight

User Maackle
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1 Answer

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Answer: It Is D. phytoplankton; sunlight

Step-by-step explanation:

User Orest Stetsiak
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