Your analysis of your evidence is the most important part of your response essay. It is important that you do not simply restate your evidence or your thesis when constructing analysis. Instead, you should look to explain how the author's technique or use of a character, for example, adds to the theme conveyed.
Land plants (and plants in the ocean, called algae) have a lot of chlorophyll-a pigment because it is essential to photosynthesis, but they also have other pigments, called accessory pigments, that help them absorb light.
Chlorophyll is a green pigment found in plants. Plants use chlorophyll and light to make food. People use chlorophyll as medicine. Common sources of chlorophyll used for medicine include alfalfa (Medicago sativa) and silkworm droppings. Chlorophyll is used for bad breath and reducing colostomy odor.