- 01.Eukaryoticandprokaryoticcells
- 0:0 免费01.Cells
- 0:0 免费02.Lightmicroscopyobservingandd ...
- 0:0 免费03.Animalcellscommonstructuresa ...
- 0:0 免费04.Plantcellscommonstructuresan ...
- 0:0 免费05.Eukaryoticandprokaryoticorga ...
- 0:0 免费06.Commonstructuresofprokaryoti ...
- 0:0 免费07.Thesizeandscaleofcellsthebas ...
- 02.DNAandthegenome
- 0:0 免费01.Thegenome
- 0:0 免费02.ThechemicalstructureofDNA
- 0:0 免费03.Thegenome,theenvironmentandp ...
- 03.Healthanddisease
- 0:0 免费01.Diseases
- 0:0 免费02.Cardiovasculardisease
- 0:0 免费03.Effectsofexerciseonpulserate
- 0:0 免费04.Riskfactorsfornon-communicab ...
- 0:0 免费05.Cancer
- 0:0 免费06.Bacterialandviraldiseasesinh ...
- 0:0 免费07.Fungalandprotistdiseasesinhu ...
- 0:0
免费08.Sexuallytransmittedinfection ... - 0:0 免费09.PlantdiseasesTMV,crowngalldi ...
- 0:0 免费10.PlantdiseasesTMV,crowngalldi ...
- 04.Biologicalmoleculesandenzymes
- 0:0 免费01.Biologicalmolecules
- 0:0 免费02.Testsforbiologicalmolecules
- 0:0 免费03.Obtainingtheelementsneededto ...
- 0:0 免费04.Enzymesfunction,structureand ...
- 0:0 免费05.Effectsofsubstrateconcentrat ...
- 0:0 免费06.TheeffectofpHontherateofanen ...
- 0:0 免费07.TheeffectofpHontherateofanen ...
- 0:0 免费08.TheeffectofpHontherateofanen ...
- 05.Transportandexchangesurfacesinhumans
- 0:0 免费01.Thehumancirculatorysystem
- 0:0 免费02.Thehumanheartanddoublecircul ...
- 0:0 免费03.Humanbloodcellsandbloodvesse ...
- 0:0 免费04.Microscopyofhumanbloodcellsa ...
- 0:0 免费05.Movingintoandoutoftheblooddi ...
- 0:0 免费06.Diffusionandsurfaceareatovol ...
- 0:0 免费07.Theimportanceofexchangesurfa ...
- 06.Coordinationandcontrolthehumannervoussystem
- 0:0 免费01.Thehumannervoussystem
- 0:0 免费02.Neuronesandsynapses
- 0:0 免费03.Humanreactiontimepractical
- 0:0 免费04.Thestructureandfunctionofare ...
- 0:0 免费05.Thehumaneye
- 0:0 免费06.Commondefectsofthehumaneye
- 0:0 免费07.Thehumanbrain
- 07.Coordinationandcontrolhormonesandthehumanendocrinesystem
- 0:0 免费01.Thehumanendocrinesystem
- 0:0 免费02.Insulinandthecontrolofbloods ...
- 0:0 免费03.Type1andtype2diabetes
- 08.Photosynthesisrequirementsandproducts
- 0:0 免费01.Producers,photosynthesisandc ...
- 0:0 免费02.Therequirementsandproductsof ...
- 09.Inheritance,genotypeandphenotype
- 0:0 免费01.Alleles,genotype,andphenotyp ...
- 0:0 免费02.Modelsofsingle-geneinheritan ...
- 0:0 免费03.Modelsofsingle-geneinheritan ...
- 0:0 免费04.ExplaininginheritanceMendela ...
- 0:0 免费05.Theinheritanceofbiologicalse ...
- 10.Celldivisionmitosisandmeiosis
- 0:0 免费01.Growthinmulticellularorganis ...
- 0:0 免费02.Thecellcycleandcelldivisionm ...
- 0:0 免费03.Observingmitosisinplantcells ...
- 0:0 免费04.ThestructureofDNAincludingnu ...
- 0:0 免费05.Errorsincelldivisionandcance ...
- 0:0 免费06.Makinggametesmeiosis
- 11.Stemcellsanddifferentiation
- 0:0 免费01.Specialisedcells,unspecialis ...
- 0:0 免费02.Stemcellsinanimals
- 0:0 免费03.Meristemcellsinplants
- 0:0 免费04.Usingstemcellsinmedicinepote ...
- 12.Fossilevidence,selectivebreedingandexplainingevolution
- 0:0 免费01.Thefossilrecordprovidesevide ...
- 0:0 免费02.Commonancestorsandtransition ...
- 0:0 免费03.Selectivebreedingandhumanfoo ...
- 0:0 免费04.Darwin,Wallaceandthetheoryof ...
- 0:0 免费05.Theevolutionofnewspecies
- 13.Livingorganismsandtheirenvironments
- 0:0 免费01.Componentsofanecosystem
- 0:0 免费02.Measuringthesizeanddistribut ...
- 0:0 免费03.Estimatingpopulationsizeusin ...
- 0:0 免费04.Estimatingpopulationsizeandd ...
- 0:0 免费05.Competitionandadaptationsine ...
- 0:0 免费06.Theroleofmicroorganismsindec ...
- 0:0 免费07.Factorsaffectingtherateofdec ...
- 0:0 免费08.Theeffectoftemperatureonther ...
- 0:0 免费09.Theeffectoftemperatureonther ...
- 0:0 免费10.Materialcyclesthecarboncycle
- 0:0 免费11.Materialcyclesthewatercycle