Actually they are not autotrophs,they are phototrophs.Autotrophs are organisms who use CO2 as Carbon sourse.
photoautotrophs
Autotrophs
either eat sunlight directly (photosynthesis)or eat sunlight indirectly (eat plants, or eat animals which have eaten plants etc etc)or derive nutrients from stone (lithotrophic bacteria) or chemicals (chemotrophic bacteria)or derive nutrients and heat from hot ocean vents at the bottom of the sea
Organisms that produce their own energy using sunlight are photosynthetic organisms. These are plants or other organisms that contain chloroplasts.
All photosynthetic organisms create energy from sunlight.
Photosynthesis
Phytoplankton are photosynthetic organisms. They get their energy from sunlight.
The source of energy for most organisms is chemical energy and sunlight.
Autotrophs
Solar Energy
either eat sunlight directly (photosynthesis)or eat sunlight indirectly (eat plants, or eat animals which have eaten plants etc etc)or derive nutrients from stone (lithotrophic bacteria) or chemicals (chemotrophic bacteria)or derive nutrients and heat from hot ocean vents at the bottom of the sea
Organisms that produce their own energy using sunlight are photosynthetic organisms. These are plants or other organisms that contain chloroplasts.
An organism that uses sunlight to make food or energy is known as a producer. An example of a producer is a plant. The plant utilizes the sunlight as energy to produce food.
Organisms that make their own food with sunlight or chemical energy are called autotrophs.
Autotrophs (plants).
All photosynthetic organisms create energy from sunlight.
chloriphil
Sunlight is electromagnetic radiation often referred to as solar power.