Thus, green plants, phytoplankton, seaweed and some bacteria are producers. Producers absorb some of the Sun's energy and use it to manufacture sugar. The rest of the living world depends on producers as the ultimate source of food. There are some bacteria which photosynthesize in a similar way to green plants. Deep in the oceans, however, there are bacteria which make their own food, not by using energy from the Sun, but by using energy contained in sulfur-rich chemicals which come from the molten rock of the Earth itself.
Light enters the eye through the pupil.
All rights reserved. Privacy Policy .