Explanation:
Photosystems are the practical components for photosynthesis, well-defined by a specific stain association and connotation patterns, whose work is the absorption and allocation of light energy, which suggests transfer of electrons. Physically, photosystems are initiate in the thylakoid membranes. A photosystem consists of a light-harvesting complex and a reaction center. Pigments in the light-harvesting complex pass light energy to two special chlorophyll a molecules in the reaction center. Photosystem I or PS I and Photosystem II or PS II are the protein-mediated complex, and the main aim is to produce energy (ATP and 
), which is used in Calvin cycle, the PSI uses light energy to convert NADP+ to .
Bacteria are important in the nitrogen cycle because they help the nitrogen change between states so it can be used. When nitrogen is absorbed by the soil different bacteria help it to change states so it can be absorbed by plants. Animals can then get there nitrogen from the plants.
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Answer:
Explanation:
A.C. D
Because it’s the most common way to prove something is true or correct. They aren’t people with superpowers but they are smart enough to find information and evidence to support their facts they have found .
Flagella and cilia are both used for movement
