Which of the following organic molecules is used for chemical digestion? a. protein
b. fats and oils
c. nucleic acids
d. carbohydrates

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Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

What is the similarities and differences between bacteria and eukaryote?