Let's Look It Up . . . Let's Look It Up . . . Chlorophyll - According to The Kingfisher Encyclopedia , chlorophyll is the pigment in plant cells that gives them their green color. Most plant cells do not produce chlorophyll unless they are exposed to light.
Chlorophyll is essential for photosynthesis.
It absorbs energy from the Sun's light and uses it to help the plants make food from carbon dioxide and water. According to The Kingfisher Encyclopedia , a species is a particular kind of organism. There are about 1,000,000 known animal species and over 350,000 known plant species. All members of a species have the same general appearance and behavior. In a species, there can be a lot of variation between individuals.