Paramecium caudatum are classified as eukaryotic cells rather than prokaryotic cells because they contain a genetic material b ribosomes c plasma membrane d cell walls e membrane-bound nuclei

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Eutrophication caused by human nutrient pollution.