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Multicellular algae is crucial to the atmosphere, as it actually produces the greatest percentage of oxygen in our atmosphere, compared to other photosynthetic organisms.
In an energy pyramid, algae would be the substance found at the bottom trophic level. Algae are eukaryotic organisms, and can be unicellular or multicellular.
With any topic, geographers must decide how large an area to study. They can focus their study at a local, regional, or global level.
an Organ System
It is easy to identify one of the most important effects of the rise in the level of greenhouse gases and that is a rise in global warming.
primary producer
the different levels of geography are local level,regional level,global level..
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From smallest to largest, a multicellular organism can be organized into cells, tissues, organ systems, and organisms.
global warming!
Average sea level is affected most by global climate.
yes, the algae feeds on the chlorine.. must get rid of algae, then bring up chlorine level