On a trip to a wildlife sanctuary, nathan found a piece of rotting log. he took a sample from the log to examine in his laboratory. the organism he found was eukaryotic and could not photosynthesize. it also had a cell wall. what type of organism was most likely feeding on this sample? plant-like protist animal-like protist fungus-like protist archaea bacteria

Since the organism eukaryotic we can safely assume that it is neither an archaea nor a bacteria since they are both prokaryotes. 
Secondly, since it can not photosynthesize, it can't be a plant because all plants can photosynthesize. 
The presence of a cell wall tells us that it can't be an animal cell since they lack cell walls.
Therefore, the organism found is a fungus-like protist. Fungi are prokaryotic cells that are unable to photosynthesize and they have cell walls.

The type of organism that most likely feeding on this sample is a fungus-like protist.

The correct option is C.

What are fungus-like protist?

Fungus-like protist are molds which are found on decaying organic matter.

They reproduce by spores.

They do not do photosynthesis due to lack of chlorophyll.

Furthermore, they have cell wall made up of cellulose.

Thus, the correct option is C, a fungus-like protist.

Learn more about fungus-like protist, here:

link

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