What are some free links that i can use to study for a big test? how can i study for a big test? how can i memorize stuff for a big test?
it is a biology test! answer all question

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Explanation:

you study things over a period of time, use quizlet for biology, use flashcards, have family or friends quiz you, and study notes

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.

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explanation:

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