Find out: 1  the documents you need. 2  the common errors to watch for. 3  the consequences of filing an EITC return with an error. 4  how to get help preparing your return. 5  what you need to do if your EITC was denied in a previous year. 6  how to claim the credit for earlier tax years.
Biological pigment. The budgerigar gets its yellow color from a psittacofulvin pigment and its green color from a combination of the same yellow pigment and blue structural color. The blue and white bird in the background lacks the yellow pigment. The dark markings on both birds are due to the black pigment eumelanin.
Ponds contain a rich diversity of microbes. The green microbes growing closest to the top are green algae and cyanobacteria. This green color comes from chlorophyll, a chemical that turns solar energy into food that the microbes can use. The conversion of light into chemical energy is called photosynthesis.