BIOLOGY CHAPTER 1 science observation hypothesis method variable controlled experiment independent variable dependent variable control data theory mass weight VOCABULARY BIOLOGY CHAPTER 2 Biology Environment Metabolism Catabolism Anabolism Homeostasis Cell Unicellular Multicellular Asexual reproduction Sexual reproduction Microscope Resolution Stimuli Stable VOCABULARY CHAPTER 3 BIOLOGY Atom Nucleus Proton Neutron Electron Phase Element Isotope Molecule Compound Volume Matter Covalent Radioactive Properties Formula Symbol VOCABULARY CHAPTER 4 BIOLOGY Polar Mixture Solution Suspension Solvent Solute Acid Base Alkaline Neutralization Inorganic Organic Carbohydrates Monosaccharide Amino acid Deoxyribonucleic acid Lipids Enzymes Abundant Catalyst Dehydration VOCABULARY