Protists are a group of organisms that are characterized as eukaryotes (they have cells with nuclei) that are neither plants nor animals nor fungi. they are very diverse, and there are many hypotheses about their classification. the cladogram for protists is constantly changing and, sometimes, there are opposite hypotheses that both have data to support them. what is the implication of a changing hypothesis? it is acceptable because data are still being collected. it is acceptable because everything in science should always change. it is not acceptable because the correct answer needs to be found. it is not acceptable because science never changes.

It is acceptable because data are still being collected.

Protists obtain food in 3 ways. They produce their own organic molecules, ingest, and absorb.  Ingestive protists ingest food, or engulf bacteria. These protists extend their cell wall and cell membrane forming a food vacuole around the food item. Inside the food vacuole, enzymes digest the food. Absorptive protists on the other hand, absorb food molecules  across their cell membrane which takes place through diffusion. Absorptive protists play a key role in decomposition. They are considered as important decomposers. Major producers  like photosynthetic protists  use light energy to manufacture  their own food. 

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