Answer: I think it’s D. Pls don’t bash me if it’s wrong
Answer:
Serotonin
Explanation:
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I and III.
Chargaff's law and Rosalind Franklin's discoveries
Answer:
CO2 is supplied by mammals and other living animals exhaling, producing CO2 this is absorbed through their leaves, and stems
H2O is supplied by the water cycle, nearby rivers, oceans, creeks etc. This is soaked up through their roots. Excess sugars are also stored in the roots as food.
Sunlight is provided in the atmosphere and the chlorophyll absorbs this.
Explanation: