Is algae or protists producers?

Question

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10 points anyone?

Answer 1

Some Algae and Some Protists are producers while Some algae and Some Protists are consumers.

Answer 2

The short answer is that algae are primary producers, but that not all protists are (e.g., protozoans). Note that most algae are no longer classified within the Kingdom Plantae; they are now included among the protists.

Algae come in multiple forms from multicellular organisms like kelp, to microscopic, single-cell organisms. Although they are not as complex as land plants, the biochemical process of photosynthesis is the same. Very much like plants, algae have chloroplasts and chlorophyll, but various accessory pigments are present in some algae such as phycocyanin, carotenes, and xanthophylls in green algae and phycoerythrin in red algae (rhodophytes), resulting in a wide variety of colors. All algae produce oxygen, and many are autotrophic. However, some are heterotrophic, relying on materials produced by other organisms. For example, in coral reefs, there is a mutualistic relationship between zooxanthellae and the coral polyps. Photosynthetic protists (microalgae) are responsible for much of the primary production that occurs in the world's oceans.

http://www.serc.si.edu/labs/protistan_ec...

http://biology.clc.uc.edu/courses/bio106...

http://en.wikipedia.org/wiki/Algae

Answer 3

most of the algae are producers i.e: they perform photosynthesis  

but some algae such as cephaleurus ,   harveyella are parasitic  

some protists such as dinoflagelates , diatoms , eugelena are producers

but protozoan protists are consumers (e.g.: amoeba paramecium etc.

Answer 4

algae b/c they perform photosynthesis which gives us oxygen

algae are also the very bottom of the food chain