Algae
The energy used by most organisms for metabolism and growth ultimately comes from the sun. Through the process of photosynthesis, plants and other photosynthetic organisms convert sunlight into chemical energy stored in molecules like glucose, which is then consumed by other organisms in the food chain.
Plants, algae, and certain bacteria are organisms that undergo photosynthesis. They contain chlorophyll, a pigment that enables them to convert sunlight into energy through the process of photosynthesis.
At the base of nearly every ecosystem on Earth is the energy from sunlight. There are rare examples in the abyssal plains/trenches where chemosynthesis takes place due to internal heat and exhaust from the asthenosphere/magma layer. However, since most ecosystems include photosynthetic plants, the energy from sunlight forms the basis for most energy in the system.
No, not all living organisms undergo photosynthesis. Only phototrophs (photosynthetic autotrophs) such as plants, algae, and many forms of photosynthetic bacteria undergo photosynthesis. All other organisms live by eating autotrophs or other organisms that have eaten autotrophs; these organisms are heterotrophs. There are a few specialized organisms (which may live where no light shines) that use a process called chemosynthesis to get their energy; these organisms are called chemotrophs.
Most photosynthetic cells in plants are found in the mesophyll layer of the leaves. This layer contains the palisade and spongy mesophyll cells, which are responsible for carrying out photosynthesis. These cells contain chloroplasts that capture sunlight and convert it into energy for the plant.
Most dinoflagellates are marine plankton though they are also abundant in fresh water habitats. These organisms are known as photosynthetic.
photosynthetic organisms.
The most important role of photosynthetic organisms in an ecosystem is to produce oxygen and organic molecules (such as glucose) through the process of photosynthesis. This provides energy and nutrients for other organisms in the ecosystem, forming the base of the food chain and supporting the overall biodiversity and stability of the ecosystem.
A cactus is really a growing plant.
Photosynthetic organisms like most plants and some protists and bacterias.
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Alzheimer's may be growing, but it is hardly an infectious disease! You can't catch it from anyone. The common cold is the most infectious disease by far, but lyme disease is one of the fastest growing diseases in the US according to the CDC.
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