If a scientific idea has been proven 100% of the time, like gravity, it becomes a whereas an idea that is generally believed but has not been proven to be 100% true would be called a .

The correct answer would be - scientific theory.

Explanation:

A scientific theory is a confirmed explanation of any particular natural aspect or phenomenon of the world which is confirmed and accepted widely by the facts based on observation and experiment.

This particular idea or explanation for the natural phenomenon is true time based and believed to be true for time being and proved for a time but can be changed with the new discoveries and facts.

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.