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science ecology cell reproduction mixture ecosystem properties of matter mass energy properties levels of biological organization matter prokaryotes vs. eukaryotes prokaryotic decomposers solutions scientific method experimentation laboratory soil lab introduction to science ovule ovary technology science and technology asexual characteristics of life stamen biological organization flower biology organization life megagametogenesis pistil cell theory types of microscopes history of microscopes microscopes neutralization bases acids salts groups periodic table periods plants nonmetals metals vegetative grafting fission fungi microorganisms budding virus protozoan bacteria cutting membrane nucleus parts parts of the cell animal cell organelles propagation plant cell cell wall megaspore receptacle eukaryotes prokaryotes eukaryotic modern cell theory theory calyx the scientific method experimental variables control field experiment natural experiment dependent variable experiment method scientific conclusion hypothesis observation lab safety signs lab safety laboratory apparatus laboratory equipment lab apparatus lab equipment laboratory tools careers in science careers scientist attitudes of scientist attitude good scientist scientists values of a good scientist values applied science pure science branches of science knowledge metalloids element pure substance compound elements substance colloid suspension colloids suspensions concentrated diluted solvent saturated solute unsaturated chemical physical change physical chemical change intensive extensive problem solving volume density dependent independent variable controls controlled experiment variable independent acceleration impulse action momentum laws of motion inertia wave longitudinal waves sound waves light waves sound transverse light latitude prime meridian earth nuclear vectors air pressure pressure scalars fluid pressure graphical method mathematical method pythagorean vector component method sources of energy convection power plants conduction reaction interaction mohs lava fracture rocks metamorphic ductility cleavage hydrosphere acid rain underground water system oceans benthos water pollution water systems water aquatic organisms water currents equator coordinates location core layers of the earth crust longitude locating mantle scale magma lithosphere igneous minerals sedimentary malleability sexual animals biosphere environment population community ecosytem biotic abiotic living non-living autotrophs heterotrophs parasitism commensalism symbiosis mutualism variables microgametogenesis microspore pollination plant fertilization cross self fruit embryo seed germination cotyledon bird frog earthworm tapeworm ecological succession forests conserving soil and forests conserving contact noncontact electricity physics magnetism gravity magnetic force law of universal gravitation weight electric friction properties of minerals ecological relationships predation competition producers food web food food chain consumers resources philippines major ecosystems and resources in the philippines water cycle nutrient nutrient cycles carbon cycle nitrogen cycle succession