Answer:
Answer 1
light energy from the sun.
answer 2
Microscopic organisms are tiny life forms, often consisting of a single cell. ... Algae — these are single celled plants also known as phytoplankton (from the Greek, meaning drifting plants)
answer 3
Some phytoplankton are bacteria, some are protists, and most are single-celled plants. Among the common kinds are cyanobacteria, silica-encased diatoms, dinoflagellates, green algae, and chalk-coated coccolithophore
Explanation:
it uses light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen
