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Website Title
Learn Biology Online - Biology Articles, Tutorials & Dictionary Online
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Biology Online is the world’s most comprehensive database of Biology terms and topics. Since 2001 it has been the resource of choice for professors, students, and professionals needing answers to Biology questions.
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| Property | Content |
|---|---|
| locale | en_US |
| type | article |
| title | Learn Biology Online |
| description | Biology Online is the world’s most comprehensive database of Biology terms and topics. Since 2001 it has been the resource of choice for professors, students, and professionals needing answers to Biology questions. |
| url | https://www.biologyonline.com/ |
| site_name | Biology Articles, Tutorials & Dictionary Online |
| updated_time | 2020-02-18T05:42:44+00:00 |
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 4 | 26 | 0 | 8 | 0 |
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In-page links
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| Anchor | Type | Juice |
|---|---|---|
| Skip to content | Internal | Passing Juice |
| Dictionary | External | Passing Juice |
| Articles | External | Passing Juice |
| Tutorials | External | Passing Juice |
| Biology Forum | External | Passing Juice |
| Featured Terms | Internal | Passing Juice |
| Abiotic | External | Passing Juice |
| Active transport | External | Passing Juice |
| Adaptation | External | Passing Juice |
| Aerobic bacteria | External | Passing Juice |
| Alimentary canal | External | Passing Juice |
| Allele | External | Passing Juice |
| Allopatric speciation | External | Passing Juice |
| Amphipathic | External | Passing Juice |
| Anabolism | External | Passing Juice |
| Anaerobic | External | Passing Juice |
| Anaerobic respiration | External | Passing Juice |
| Analogous | External | Passing Juice |
| Analogous structures | External | Passing Juice |
| Anatomy | External | Passing Juice |
| Angiosperm | External | Passing Juice |
| Animal | External | Passing Juice |
| Animal cell | External | Passing Juice |
| Antagonistic Muscle | External | Passing Juice |
| Antigen | External | Passing Juice |
| Apoenzyme | External | Passing Juice |
| Asexual reproduction | External | Passing Juice |
| Assimilation | External | Passing Juice |
| Autocrine signaling | External | Passing Juice |
| Autotroph | External | Passing Juice |
| Axon hillock | External | Passing Juice |
| Axon terminal | External | Passing Juice |
| Bacteria | External | Passing Juice |
| Balanced diet | External | Passing Juice |
| Base-pairing rule | External | Passing Juice |
| Benign | External | Passing Juice |
| Biennial | External | Passing Juice |
| Binary fission | External | Passing Juice |
| Binomial nomenclature | External | Passing Juice |
| Biodiversity | External | Passing Juice |
| Biological system | External | Passing Juice |
| Biology | External | Passing Juice |
| Biome | External | Passing Juice |
| Biosphere | External | Passing Juice |
| Biotic | External | Passing Juice |
| Biotic factor | External | Passing Juice |
| Biotic potential | External | Passing Juice |
| Biuret test | External | Passing Juice |
| Bivalent | External | Passing Juice |
| Body fluid | External | Passing Juice |
| Bolus injection | External | Passing Juice |
| Bone matrix | External | Passing Juice |
| Book lungs | External | Passing Juice |
| Botany | External | Passing Juice |
| Buck’s traction | External | Passing Juice |
| Budding | External | Passing Juice |
| Carbon fixation | External | Passing Juice |
| Carrier protein | External | Passing Juice |
| Carrying capacity | External | Passing Juice |
| Cell | External | Passing Juice |
| Cell morphology | External | Passing Juice |
| Cell wall | External | Passing Juice |
| Cellular respiration | External | Passing Juice |
| Chemiosmosis | External | Passing Juice |
| Chloroplast | External | Passing Juice |
| Chordata | External | Passing Juice |
| Chromatin | External | Passing Juice |
| Chromosomal mutation | External | Passing Juice |
| Chromosome | External | Passing Juice |
| Class | External | Passing Juice |
| Codominance | External | Passing Juice |
| Codon | External | Passing Juice |
| Coenzyme | External | Passing Juice |
| Cohesion | External | Passing Juice |
| Commensalism | External | Passing Juice |
| Complete dominance | External | Passing Juice |
| Concentration gradient | External | Passing Juice |
| Condyloid joint | External | Passing Juice |
| Convergent evolution | External | Passing Juice |
| Convoluted | External | Passing Juice |
| coronavirus COVID-19 | External | Passing Juice |
| Cross-linking | External | Passing Juice |
| Cytokinesis | External | Passing Juice |
| Cytoplasm | External | Passing Juice |
| Darwinian fitness | External | Passing Juice |
| Deciduous forest | External | Passing Juice |
| Decomposer | External | Passing Juice |
| Definitive host | External | Passing Juice |
| Dehydration reaction | External | Passing Juice |
| Demographic transition | External | Passing Juice |
| Dense irregular connective tissue | External | Passing Juice |
| Dense regular connective tissue | External | Passing Juice |
| Density dependent factor | External | Passing Juice |
| Density dependent limiting factor | External | Passing Juice |
| Deoxyribonucleic acid | External | Passing Juice |
| Desiccation | External | Passing Juice |
| Diaphoresis | External | Passing Juice |
| Diarthrodial joint | External | Passing Juice |
| Dichotomous | External | Passing Juice |
| Differentiation | External | Passing Juice |
| Diffusion | External | Passing Juice |
| Diploid | External | Passing Juice |
| Disruptive Selection | External | Passing Juice |
| Divergent evolution | External | Passing Juice |
| Dominant | External | Passing Juice |
| Dominant species | External | Passing Juice |
| Ecological niche | External | Passing Juice |
| Ecosystem | External | Passing Juice |
| Ecosystem diversity | External | Passing Juice |
| Element | External | Passing Juice |
| Endemic | External | Passing Juice |
| Endocytosis | External | Passing Juice |
| Endomembrane system | External | Passing Juice |
| Endosymbiosis | External | Passing Juice |
| Endosymbiotic theory | External | Passing Juice |
| Energy coupling | External | Passing Juice |
| Environment | External | Passing Juice |
| Environmental resistance | External | Passing Juice |
| Epidermis | External | Passing Juice |
| Epistasis | External | Passing Juice |
| Equilibrium | External | Passing Juice |
| Eukaryote | External | Passing Juice |
| Eukaryotic cells | External | Passing Juice |
| Evolution | External | Passing Juice |
| Exon | External | Passing Juice |
| Exotic species | External | Passing Juice |
| Exudate | External | Passing Juice |
| Facilitated diffusion | External | Passing Juice |
| Facultative anaerobe | External | Passing Juice |
| Family | External | Passing Juice |
| Family traits | External | Passing Juice |
| Fastidious | External | Passing Juice |
| Fecundity | External | Passing Juice |
| Feedback mechanism | External | Passing Juice |
| Female | External | Passing Juice |
| Fermentation | External | Passing Juice |
| Fibrinous exudate | External | Passing Juice |
| Fibrocartilage | External | Passing Juice |
| Filtration | External | Passing Juice |
| First-order kinetics | External | Passing Juice |
| Fitness | External | Passing Juice |
| Flaccid | External | Passing Juice |
| Flora | External | Passing Juice |
| Fluid mosaic model | External | Passing Juice |
| Focus | External | Passing Juice |
| Follicle-stimulating hormone | External | Passing Juice |
| Fragmentation | External | Passing Juice |
| Frameshift mutation | External | Passing Juice |
| Fundamental niche | External | Passing Juice |
| Fungi | External | Passing Juice |
| Gamete | External | Passing Juice |
| Ganglia | External | Passing Juice |
| Gene | External | Passing Juice |
| Genetic diversity | External | Passing Juice |
| Genetic drift | External | Passing Juice |
| Genetic material | External | Passing Juice |
| Genetics | External | Passing Juice |
| Genome | External | Passing Juice |
| Genotype | External | Passing Juice |
| Genotypic ratio | External | Passing Juice |
| Genus | External | Passing Juice |
| Glucose | External | Passing Juice |
| Glycerol | External | Passing Juice |
| Glycogenolysis | External | Passing Juice |
| Glycolipid | External | Passing Juice |
| Glycolysis | External | Passing Juice |
| Golgi apparatus | External | Passing Juice |
| Graded potential | External | Passing Juice |
| Gram-positive bacilli | External | Passing Juice |
| Gram-positive cocci | External | Passing Juice |
| Group translocation | External | Passing Juice |
| Growth | External | Passing Juice |
| Guanine | External | Passing Juice |
| Haploid | External | Passing Juice |
| Heredity | External | Passing Juice |
| Hermaphrodite | External | Passing Juice |
| Heterotroph | External | Passing Juice |
| Heterozygous | External | Passing Juice |
| Homeostasis | External | Passing Juice |
| Homo sapiens sapiens | External | Passing Juice |
| Homogenous | External | Passing Juice |
| Homologous | External | Passing Juice |
| Homologous chromosome | External | Passing Juice |
| Homologous structures | External | Passing Juice |
| Homozygous | External | Passing Juice |
| Host cell | External | Passing Juice |
| Hyaline cartilage | External | Passing Juice |
| Hydrophilic | External | Passing Juice |
| Hydrophobic | External | Passing Juice |
| Hyperosmotic | External | Passing Juice |
| Hypersensitivity | External | Passing Juice |
| Hypertonic | External | Passing Juice |
| Hypomelanism | External | Passing Juice |
| Hypothesis | External | Passing Juice |
| Hypotonic | External | Passing Juice |
| Hypotonic solution | External | Passing Juice |
| Hypotonicity | External | Passing Juice |
| Immunoglobulin | External | Passing Juice |
| Imprinting | External | Passing Juice |
| In situ | External | Passing Juice |
| Incomplete dominance | External | Passing Juice |
| Incubation period | External | Passing Juice |
| Independent variable | External | Passing Juice |
| Individual | External | Passing Juice |
| Induced fit model | External | Passing Juice |
| Inoculation | External | Passing Juice |
| Inoculum | External | Passing Juice |
| Inorganic compound | External | Passing Juice |
| Intercalary meristem | External | Passing Juice |
| Intermediate host | External | Passing Juice |
| Interphase | External | Passing Juice |
| Interspecific competition | External | Passing Juice |
| Interstitial fluid | External | Passing Juice |
| Intracellular digestion | External | Passing Juice |
| Involuntary muscle | External | Passing Juice |
| Iodine test | External | Passing Juice |
| Ionic bond | External | Passing Juice |
| Isotonic | External | Passing Juice |
| Jaundice | External | Passing Juice |
| Jaw | External | Passing Juice |
| Jaw jerk reflex | External | Passing Juice |
| Jellyfish | External | Passing Juice |
| Joint | External | Passing Juice |
| Joint capsule | External | Passing Juice |
| Joints of pelvic girdle | External | Passing Juice |
| Jugulo-omohyoid node | External | Passing Juice |
| Juice | External | Passing Juice |
| Juncturae cinguli membri superioris | External | Passing Juice |
| Kcat | External | Passing Juice |
| Kd | External | Passing Juice |
| Kelp | External | Passing Juice |
| Kempner diet | External | Passing Juice |
| Keq | External | Passing Juice |
| Keratin | External | Passing Juice |
| Keratinocyte | External | Passing Juice |
| Kernel | External | Passing Juice |
| Ketose | External | Passing Juice |
| Ki | External | Passing Juice |
| Kidney | External | Passing Juice |
| Kidney calices | External | Passing Juice |
| Kilocalorie | External | Passing Juice |
| Kind | External | Passing Juice |
| Kinesis | External | Passing Juice |
| Kinetochore | External | Passing Juice |
| Kingdom | External | Passing Juice |
| Kingdom Animalia | External | Passing Juice |
| Kleptoparasitism | External | Passing Juice |
| Krebs cycle | External | Passing Juice |
| Labia | External | Passing Juice |
| Lacuna | External | Passing Juice |
| Lanugo | External | Passing Juice |
| Law of Dominance | External | Passing Juice |
| Law of Independent Assortment | External | Passing Juice |
| Law of Segregation | External | Passing Juice |
| Lethal mutation | External | Passing Juice |
| Leukocytosis | External | Passing Juice |
| Life | External | Passing Juice |
| Ligase | External | Passing Juice |
| Light energy | External | Passing Juice |
| Limiting factor | External | Passing Juice |
| Lipid | External | Passing Juice |
| Lipolysis | External | Passing Juice |
| Longitudinal section | External | Passing Juice |
| Loose associations | External | Passing Juice |
| Loose connective tissue | External | Passing Juice |
| Lysis | External | Passing Juice |
| Lysosome | External | Passing Juice |
| Matrix | External | Passing Juice |
| Median | External | Passing Juice |
| Medium | External | Passing Juice |
| Meiosis | External | Passing Juice |
| Memory cell | External | Passing Juice |
| Metabolism | External | Passing Juice |
| Metamerism | External | Passing Juice |
| Microbe | External | Passing Juice |
| Micromolecule | External | Passing Juice |
| Missense mutation | External | Passing Juice |
| Mitochondrion | External | Passing Juice |
| Mitosis | External | Passing Juice |
| Monosaccharide | External | Passing Juice |
| Morphology | External | Passing Juice |
| Multiple alleles | External | Passing Juice |
| Muscular system | External | Passing Juice |
| Mutagen | External | Passing Juice |
| Mutation | External | Passing Juice |
| Mutualism | External | Passing Juice |
| Mutualistic symbiosis | External | Passing Juice |
| Myocardium | External | Passing Juice |
| Naked virus | External | Passing Juice |
| Natural selection | External | Passing Juice |
| Negative feedback | External | Passing Juice |
| Nematocyst | External | Passing Juice |
| Nephron | External | Passing Juice |
| Nerve impulse | External | Passing Juice |
| Net photosynthesis | External | Passing Juice |
| Net primary productivity | External | Passing Juice |
| Neutral mutation | External | Passing Juice |
| Non Random Mating | External | Passing Juice |
| Non-living thing | External | Passing Juice |
| Nondisjunction | External | Passing Juice |
| Nuclear envelope | External | Passing Juice |
| Nucleolus | External | Passing Juice |
| Nucleosome | External | Passing Juice |
| Nucleotide | External | Passing Juice |
| Nucleus | External | Passing Juice |
| Null hypothesis | External | Passing Juice |
| Nulliparity | External | Passing Juice |
| Obligate aerobe | External | Passing Juice |
| Obligate anaerobe | External | Passing Juice |
| Obligate parasite | External | Passing Juice |
| Observation | External | Passing Juice |
| Okazaki fragment | External | Passing Juice |
| Oligosaccharide | External | Passing Juice |
| Omnivore | External | Passing Juice |
| Open circulatory system | External | Passing Juice |
| Opportunistic pathogen | External | Passing Juice |
| Opsonization | External | Passing Juice |
| Orbits | External | Passing Juice |
| Order | External | Passing Juice |
| Organelle | External | Passing Juice |
| Organic compound | External | Passing Juice |
| Organic matter | External | Passing Juice |
| Organic molecule | External | Passing Juice |
| Organism | External | Passing Juice |
| Organization | External | Passing Juice |
| Osmosis | External | Passing Juice |
| Osmotic Potential | External | Passing Juice |
| Osseous tissue | External | Passing Juice |
| Oxidation | External | Passing Juice |
| Parenchyma | External | Passing Juice |
| Parthenogenesis | External | Passing Juice |
| Passive transport | External | Passing Juice |
| Peritoneum | External | Passing Juice |
| Phagocytosis | External | Passing Juice |
| Phenotype | External | Passing Juice |
| Phenotypic ratio | External | Passing Juice |
| Phosphodiester bond | External | Passing Juice |
| Phylum | External | Passing Juice |
| Physiological adaptation | External | Passing Juice |
| Pinocytosis | External | Passing Juice |
| Pioneer species | External | Passing Juice |
| Pleiotropy | External | Passing Juice |
| Polygenic inheritance | External | Passing Juice |
| Polypeptide | External | Passing Juice |
| Population | External | Passing Juice |
| Positive feedback | External | Passing Juice |
| Postulate | External | Passing Juice |
| Primary succession | External | Passing Juice |
| Process | External | Passing Juice |
| Progeny | External | Passing Juice |
| Prokaryote | External | Passing Juice |
| Protein synthesis | External | Passing Juice |
| Protist | External | Passing Juice |
| Punnett Square | External | Passing Juice |
| Pyruvate | External | Passing Juice |
| Quadrangular cartilage | External | Passing Juice |
| Quadrantanopia | External | Passing Juice |
| Quadrat | External | Passing Juice |
| Quantitative analysis | External | Passing Juice |
| Quantitative trait | External | Passing Juice |
| Quaternary structure | External | Passing Juice |
| Quellung phenomenon | External | Passing Juice |
| Quenching | External | Passing Juice |
| Quill | External | Passing Juice |
| Quinacrine banding | External | Passing Juice |
| Quinone | External | Passing Juice |
| Race | External | Passing Juice |
| Radial symmetry | External | Passing Juice |
| Realized niche | External | Passing Juice |
| Recessive | External | Passing Juice |
| Redox reaction | External | Passing Juice |
| Reducing sugar | External | Passing Juice |
| Reduction | External | Passing Juice |
| Regulation | External | Passing Juice |
| Relative fitness | External | Passing Juice |
| Replication | External | Passing Juice |
| Reproduction | External | Passing Juice |
| Reservoir host | External | Passing Juice |
| Residue | External | Passing Juice |
| Respiration rate | External | Passing Juice |
| Resting potential | External | Passing Juice |
| Reticular connective tissue | External | Passing Juice |
| Revolution | External | Passing Juice |
| Rhizome | External | Passing Juice |
| Ribonucleic acid | External | Passing Juice |
| Ribosome | External | Passing Juice |
| Saccharide | External | Passing Juice |
| Sarcolemma | External | Passing Juice |
| Secondary consumer | External | Passing Juice |
| Selectively-permeable membrane | External | Passing Juice |
| Semilunar valve | External | Passing Juice |
| Sex-linked trait | External | Passing Juice |
| Sexual reproduction | External | Passing Juice |
| Simple diffusion | External | Passing Juice |
| Simple squamous epithelium | External | Passing Juice |
| Single stranded DNA virus | External | Passing Juice |
| Skeletal system | External | Passing Juice |
| Smooth endoplasmic reticulum | External | Passing Juice |
| Smooth muscle | External | Passing Juice |
| Solute | External | Passing Juice |
| Solvent | External | Passing Juice |
| Species | External | Passing Juice |
| Starch | External | Passing Juice |
| Stimulus | External | Passing Juice |
| Structure | External | Passing Juice |
| Substrate | External | Passing Juice |
| Symbiosis | External | Passing Juice |
| Sympatric speciation | External | Passing Juice |
| Synergistic effect | External | Passing Juice |
| System | External | Passing Juice |
| Tap water enema | External | Passing Juice |
| Taxis | External | Passing Juice |
| Taxon | External | Passing Juice |
| Taxonomy | External | Passing Juice |
| Telophase | External | Passing Juice |
| Telophase II | External | Passing Juice |
| Thalassophobia | External | Passing Juice |
| Theory | External | Passing Juice |
| Thermophile | External | Passing Juice |
| Thin filament | External | Passing Juice |
| Thymine | External | Passing Juice |
| Tissue | External | Passing Juice |
| Totipotent | External | Passing Juice |
| Traits | External | Passing Juice |
| Transcription (biology) | External | Passing Juice |
| Translation | External | Passing Juice |
| Tree | External | Passing Juice |
| Triploblastic | External | Passing Juice |
| Trophic level | External | Passing Juice |
| True breeding | External | Passing Juice |
| Turgidity | External | Passing Juice |
| Turgor pressure | External | Passing Juice |
| Ultradian rhythm | External | Passing Juice |
| Unconditioned stimulus | External | Passing Juice |
| Undergrowth | External | Passing Juice |
| Undulating membrane | External | Passing Juice |
| Unicellular | External | Passing Juice |
| Uniform | External | Passing Juice |
| Unipennate muscle | External | Passing Juice |
| Uniport | External | Passing Juice |
| Unipotent cell | External | Passing Juice |
| Universal solvent | External | Passing Juice |
| Unmyelinated neuron | External | Passing Juice |
| Unsaturated fatty acid | External | Passing Juice |
| Unsustainability | External | Passing Juice |
| Uracil | External | Passing Juice |
| Urethra | External | Passing Juice |
| Urinary system | External | Passing Juice |
| Urine | External | Passing Juice |
| Uterine cycle | External | Passing Juice |
| Uterine involution | External | Passing Juice |
| Vapor | External | Passing Juice |
| Variable | External | Passing Juice |
| Variation | External | Passing Juice |
| Vascular plants | External | Passing Juice |
| Vector | External | Passing Juice |
| Vegetable | External | Passing Juice |
| Vegetative reproduction | External | Passing Juice |
| Ventilation | External | Passing Juice |
| Vertical gene transfer | External | Passing Juice |
| Vesicle | External | Passing Juice |
| Vestibule | External | Passing Juice |
| Vestigial | External | Passing Juice |
| Viability | External | Passing Juice |
| Viable | External | Passing Juice |
| Virulence | External | Passing Juice |
| Viscera | External | Passing Juice |
| Viscous | External | Passing Juice |
| Vmax | External | Passing Juice |
| Voice quality | External | Passing Juice |
| Voluntary muscle | External | Passing Juice |
| Wagners syndrome | External | Passing Juice |
| Walnut | External | Passing Juice |
| Waste management | External | Passing Juice |
| Wasted ventilation | External | Passing Juice |
| Water | External | Passing Juice |
| Water mold | External | Passing Juice |
| Water potential | External | Passing Juice |
| Water table | External | Passing Juice |
| Wavelength | External | Passing Juice |
| Waxes | External | Passing Juice |
| Weather | External | Passing Juice |
| Weed | External | Passing Juice |
| White adipose tissue | External | Passing Juice |
| White blood cell | External | Passing Juice |
| White line of toldt | External | Passing Juice |
| Wild type | External | Passing Juice |
| Wood | External | Passing Juice |
| Wood units | External | Passing Juice |
| Wuchereria bancrofti | External | Passing Juice |
| X chromosome | External | Passing Juice |
| X linkage | External | Passing Juice |
| X-linked | External | Passing Juice |
| X-linked inheritance | External | Passing Juice |
| X-ray | External | Passing Juice |
| Xanthophyceae | External | Passing Juice |
| Xanthophyll | External | Passing Juice |
| Xanthophyte | External | Passing Juice |
| Xerophile | External | Passing Juice |
| Xerophthalmia | External | Passing Juice |
| Xerophyte | External | Passing Juice |
| Xxy syndrome | External | Passing Juice |
| Xylem | External | Passing Juice |
| Xylem fiber | External | Passing Juice |
| Xylem parenchyma | External | Passing Juice |
| Xylem vessel | External | Passing Juice |
| Y chromatin | External | Passing Juice |
| Y chromosome | External | Passing Juice |
| Y linkage | External | Passing Juice |
| Y-linked gene | External | Passing Juice |
| Y-linked inheritance | External | Passing Juice |
| Yac | External | Passing Juice |
| Yeast | External | Passing Juice |
| Yellow fever virus | External | Passing Juice |
| Yield | External | Passing Juice |
| Ym-shift | External | Passing Juice |
| Young-helmholtz theory of colour vision | External | Passing Juice |
| Youpon | External | Passing Juice |
| Z disc | External | Passing Juice |
| Zebra | External | Passing Juice |
| Zeitgeber | External | Passing Juice |
| Zinc | External | Passing Juice |
| Zonation | External | Passing Juice |
| Zone of inhibition | External | Passing Juice |
| Zooflagellate | External | Passing Juice |
| Zoogeography | External | Passing Juice |
| Zoology | External | Passing Juice |
| Zoomastigophora | External | Passing Juice |
| Zooplankton | External | Passing Juice |
| Zoospermia | External | Passing Juice |
| Zoospore | External | Passing Juice |
| Zwitterion | External | Passing Juice |
| Zygote | External | Passing Juice |
| Zygotene | External | Passing Juice |
| Zymogen | External | Passing Juice |
| Zymogen granules | External | Passing Juice |
| Where does protein synthesis take place | External | Passing Juice |
| What is phylum Chordata? | External | Passing Juice |
| What does mRNA do in protein synthesis? | External | Passing Juice |
| Sympatric vs allopatric speciation | External | Passing Juice |
| Asexual and sexual reproduction- differences! | External | Passing Juice |
| Advantages and disadvantages of asexual reproduction | External | Passing Juice |
| Difference between homologous chromosomes and sister chromatids | External | Passing Juice |
| Smooth muscle vs dense regular connective tissue | External | Passing Juice |
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biology cell articles see thalamic all internal keep nuclei tutorials
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