Question

photosynthesis
both
cellular respiration
reactants are carbon dioxide and water.products are glucose and oxygen.
reactants are glucose and oxygen.products are carbon dioxide and water.
a series of chemical reactions

Explanation:

Step1: Analyze Photosynthesis

Photosynthesis uses carbon dioxide ($CO_2$) and water ($H_2O$) as reactants and produces glucose ($C_6H_{12}O_6$) and oxygen ($O_2$). So, "Reactants are carbon dioxide and water" and "Products are glucose and oxygen" go in the Photosynthesis circle.

Step2: Analyze Cellular Respiration

Cellular respiration uses glucose ($C_6H_{12}O_6$) and oxygen ($O_2$) as reactants and produces carbon dioxide ($CO_2$) and water ($H_2O$). So, "Reactants are glucose and oxygen" and "Products are carbon dioxide and water" go in the Cellular Respiration circle.

Step3: Analyze Common Aspect

Both photosynthesis and cellular respiration are "A series of chemical reactions", so this goes in the Both section.

Answer:

• Photosynthesis: Reactants are carbon dioxide and water; Products are glucose and oxygen.
• Both: A series of chemical reactions.
• Cellular Respiration: Reactants are glucose and oxygen; Products are carbon dioxide and water.