Paramecium have tiny hair-like structures, called cilia, around the outer edge of their cell that move back and forth in a whip-like fashion, allowing movement in water. Paramecium normally attach to the bottom of a body of water, such as a pond, stream or puddle.
Although paramecium are protists, or single-cell organisms, they are eaten by other protists. Larger organisms, like water fleas and mussels, also eat paramecium. These single-cell organisms reproduce by splitting in half and becoming two paramecium. This process is called binary fission. The inside of a paramecium is filled with a thick gel-like substance called "protoplasm," in which bits of nutrients float.Learn More
During anaerobic respiration, yeast cells produce ethanol (alcohol) and carbon dioxide. The carbon dioxide is what makes bread rise during the baking process.Full Answer >
According to the Organisation for Economic Co-operation and Development, the rate of natural increase represents the difference between the crude birth rate and crude death rate. This statistic excludes effects of migration.Full Answer >
Polypeptides are polymers composed of amino acids bound together by peptide bonds. Information in the messenger RNA determines the exact sequence of amino acids in a polypeptide.Full Answer >
An acquired trait is a physical characteristic of an organism that is not passed down to offspring genetically. It is not coded in the organism's DNA and is a product of the environment's influence on the organism.Full Answer >