Head Words - Q, R
Q-Disc/Q-Line, Quadrangular, Quadrant, Quadrat, Quadrate, Quadratojugal (Quadratomaxillary), Quadratomandibular, Quadratus, Quadriceps, Quadrihybrid, Quadrilobate, Quadrimaculate, Quadriserial, Quadritubercular (Quadrituberculate), Quadrivoltine, Quadrumanous (Quadrimanous, Quadrumana), Quadrupedal, Quagga, Quail, Qualitative Character, Qualitative Inheritance, Quantitative Character, Quantitative Inheritance, Quantitative Multistate Character, Quantum Evolution (Quantum Speciation), Quartet, Quasi-Social, Quasi-Sympatric Speciation, Quaternary (Anthropogene, Pleistogene), Queensland Hairy-Nosed Wombat, Queensland Grouper, Quetzel, Quiescence, Quill, Quill Feathers, Quill Knobs, Quinquepartite, Quinquetubercular (Quinquetuberculate), Quintocubital.
R
Rabbit, Rabbit Fish, Raccoon (Racoon), Raccoon (Racoon) Dog, Race, Race History, Racemose Gland, Rachidian, Rachiform, Rachiodont, Rachiodontinae, Rachiostichous Fins, Rachis (Rhachis), Rachitomous (Rhachitomous), Rachycentridae (Rhachycentridae), Racial Senescence, Raciation, Racket, Racquet, Radial, Radiale, Radialia (Somactids), Radially Symmetrical, Radial Symmetry, Radiant, Radiation, Radicivorous, Radiicephalidae, Radicolous, Radiocarbon Dating, Radioecology, Radioreceptor, Radio Tracking, Radioulna, Radius, Radix, Raft, Rafting, Ragfish, Rail-Babbler, Rails, Rainbow Fish, Rainbow Runner, Rain Forest, Rain Frog, Rajidae, Rajiformes, Rakers, Ralli, Rallidae, Ramapithecus, Rami, Ramicolous, Rami Communicantes, Ramicorn, Ramiferous, Ramification, Ramiform, Ramphastidae (Rhamphastidae), Ramphocottidae, Ramuliferous, Ramulose/Ramulous, Ramus (Rami), Ram Ventilation, R And K Selection Theory, Random Assortment, Random Distribution, Random Genetic Drift, Random Mating, Random Sample, Random Walk Technique, Range, Rangiferoid, Ranidae, Raninae, Ranine, Ranivorous, Ranixalidae, Rank, Ranvier’s Nodes, Rapacious, Raphé, Raphidae (Dididae), Raptatory, Raptor, Raptorial, Rare-Male Effect, Rasorial, Rassenkreis (Rheogameon), Rat, Rat Chinchilla, Ratel, Ratfish, Rathke’s Pouch, Ratitae (Ratites), Ratite Palate, Ratite, Rat Kangaroo, Rattle, Rattlesnake, Rauber’s Layer (Rauber’s Cells), Raven, Ray, Ray-Finned Fish, Razor Bill, Razor Fish, R/B Ratio, Reaction Time, Reafference, Realm, Rear-Fanged Snakes, Recapitulation, Recapitulatory, Recent, Receptacle, Receptaculum, Receptaculum Chyli (Cisterna Chyli, Chylocyst), Receptive Spot, Receptor, Receptor Molecules, Recess, Recessive, Recipient, Reciprocal Altruism, Reciprocal Cross, Reciprocal Genes, Reciprocal Hybrids, Reciprocal Organs, Reciprocity, Reclinate, Reclining, Recruitment, Rectal, Rectal Caeca, Rectal Column (Columns of Morgagni), Rectal Gland, Rectangular Speciation, Rectigradation, Rectilinear Evolution, Rectirostral, Rectiserial, Rectogenital, Recto-Uterine, Rectovesical, Rectrices, Rectum, Rectus, Rectus Abdominis Muscles, Rectus Muscles, Recurrent, Recurrent Laryngeal Nerve, Recurrent Selection, Recurved, Recurvirostral, Recurvirostridae, Red-Billed Quelea, Red Blood Corpuscles, Red Body, Red Bone Marrow, Redd, Red Deer, Red Eft, Redfieldiiformes, Red Fox, Red Gland, Red Grouse , Redintegration, Redirected Behavior, Red Jungle Fowl, Red King Hypothesis, Red Mullet, Red Nucleus, Red Panda, Red Queen Effect, Red Spot, Red Squirrel, Redstart, Reduction, Reduction Division, Reductionism, Reduncinae, Reedfish, Refection, Reflected, Reflector Layer, Reflex, Reflex Action, Reflex Arc, Reflexed, Refracted, Refractory, Refugium (Refuge), Regalecidae, Regeneration, Region, Regression, Regressive Character, Regressive Evolution, Regularia, Regulation Eggs, Regulidae, Reindeer, Reinforcement, Reinforcing Selection, Reissner’s Fiber, Reissner’s Membrane (Membrana Vestibularis), Rejungant Species (Ring Species), Relative Abundance, Relaxation Time, Relaxin, Relay Neurone, Releaser, Releaser Effect, Relict (Relic), Remak’s Fibers, Remak’s Plexus, Remex, Remicle, Remiges, Remiped, Remizidae, Remora, Renal (Nephric), Renal Columns (Bertini’s Columns), Renal Corpuscle, Renal Portal System, Reniculus, Reniform, Renin, Rennet-Stomach, Rensch’s Laws, Repagula, Replacement Fertility Level, Replicate, Replicatile, Reproduction, Reproductive Effort, Reproductive Isolation, Reproductive Potential, Reproductive Success, Reproductive Value, Reproductivity Effect, Reptant, Reptilia, Reptiloid, Repugnatorial, Reservoir Host, Resident Avifauna, Residual Air, Residual Volume, Resorb, Respiration, Respiration/Biomass Ratio (R/B Ratio), Respiration Quotient (Rq), Respiratory Centers, Respiratory Heart, Respiratory Movements, Respiratory Organs, Respiratory Quotient, Respiratory Sac, Respiratory Substrate, Respiratory Surface, Response, Response Latency, Restiform, Resting Potential, Rete, Rete Mirabile (Red Body, Red Gland, Red Spot, Vasoganglion), Rete Mucosum, Reticle, Reticular Fibers (Argyrophil Fibers), Reticular Lamina, Reticulate (Reticular, Netted), Reticulate Classification, Reticulated Python, Reticulate Evolution, Reticulo-Endothelial, Reticulospinal, Reticulum, Retiform (Retecious, Retiary), Retina, Retinaculum Tendinum, Retinene (Retinal), Retinerved, Retinoblasts, Retractile, Retractor, Retractor Bulbis, Retractor Lentis (Processus Falciformes), Retrahens, Retral, Retroarcuate, Retrobulbar, Retrocaecal (Retrocecal), Retrocerebral, Retrochoanitic, Retrofract, Retrogression (Degeneration, Retrogressive), Retrogressive Metamorphosis, Retrolingual, Retromandibular, Retromorphosis, Retroperitoneal, Retropharyngeal, Retropinnidae, Retropubic, Retrorse (Retroverse), Retroserrate (Runcinate), Retroserrulate, Retro-Uterine, Retroverse (Retrorse), Revehent, Reversion (Atavism), Revivescence, Revolute, Rhabdiform, Rhabdoid, Rhabdornithidae, Rhabdus, Rhachianectidae, Rhachis, Rhachitomi (Rhachitomes), Rhachitomous Vertebrae, Rhacophoridae, Rhaetic (Rhaetian), Rhamphastidae, Rhamphichthyidae, Rhamphoid, Rhamphorhynchidae, Rhamphotheca, Rhea, Rheidae, Rheiformes, Rhenanidiformes (Rhenanida), Rheogameon, Rheology, Rheophile (Rheophilic), Rheoreceptors (Rheotactic Receptors), Rheotaxis, Rheoxenous, Rhesus Monkey, Rhexigenous, Rhexilysis, Rhigosis, Rhinal, Rhinal Fissures, Rhinarium, Rhinatrematidae, Rhincodontidae, Rhinencephalon, Rhineuridae, Rhinion, Rhinobatidae, Rhinobatiformes, Rhinocaul (Olfactory Peduncle), Rhinoceros, Rhinoceros Viper, Rhinocerotidae, Rhinocerotoidea (erron. Rhinoceratoidea), Rhinochetidae, Rhinochimaeridae, Rhinocoele (Rhinocoel), Rhinocryptidae, Rhinodermatidae, Rhinolophidae, Rhinolophoidea, Rhinopharynx, Rhinophrynidae, Rhinophrynoidea, Rhinopomatidae, Rhinopteridae, Rhinotheca, Rhipidate (Flabelliform), Rhipidistia, Rhipidostichous, Rhipiduridae, Rhiptoglossa, Rhiptoglossate, Rhizodontiformes, Rhizoid, Rhizomyidae (erron. Rhyzomyidae ), Rhizophagous, Rhodesian Man (Homo Rhodesiensis), Rhodeus, Rhodophane, Rhodopsin (Visual Purple, Erythropsin), Rhombencephalon, Rhombic, Rhombocoele, Rhomboid, Rhomboideus, Major & Minor, Rhomboid-Ovate, Rhyacichthyidae, Rhyacotritonidae, Rhynchobatidae, Rhynchocephalia, Rhynchodont, Rhynchokinetic, Rhynchopidae (Erron. Rynchopidae), Rhynchosauridae, Rhynochetidae, Rhypophagous (Rypophagous), Rhythm, Rib, Ribbon Fish, Ribonucleic Acid (Rna), Ricefish, Rictal, Rictal Bristle, Rictus, Right Whale, Rigor Mortis, Rima, Rimate, Rimiform, Rimose, Rimulose, Ring Bone, Ring Centriole, Ringed Snake, Ringer Solution (Ringer’s Fluid), Ring Species, Ring-Tailed Lemurs, Ring-Tailed Possums, Ring Vertebrae, Riparicolous (Riparial, Riparious), Risorius (Santorini’s Muscle), Ritualizaton, River Dolphin, River-Jack, River Stingray, Rivinian, Rivulidae, Rna, Roach, Roadrunner, Robertsonian Translocation (Robertsonian Fusion), Rock Dove, Rockfish, Rockfowl, Rock Rat, Rock Sparrows, Rock Thrushes, Rock Whiting, Rodentia (Simplicidentata), Rodent Run, Rod Epithelium, Roding, Rodriguez Solitaire, Rods, Rods of Corti, Roe, Roe Deer, Rolandic, Roll, Rollers, Romer’s Rule, Ronquil, Rook, Rookery, Roosting, Roridous, Rorqual, Rosenmüller’s Organ, Rosette Organ, Rostel, Rostellate, Rostelliform, Rostellum, Rostrad, Rostral, Rostral Gland, Rostral Tubes, Rostrate, Rostratulidae, Rostriform (Rostroid), Rostrulum, Rostrum, Rotate, Rotator, Rotatores Spinae, Rotatorium, Rotiform, Rotula, Rotuliform, Rouget Cells, Rough-Toothed Dolphin, Roughy, Roundhead, Round Windo, R - Selection, R - Strategists, Rubiginose (Rubiginous), Rubrospinal, Ruby-Throated Humming Birds, Ruby Throats, Ruderal, Rudimentary, Ruff, Ruff, Ruffe, Ruffed Lemur, Ruffini’s Organs (Corpusles of Ruffini), Rufinism (Rutilism), Rufous, Ruga, Rugate, Rugose (Rugous), Rugulose, Rumen (Ingluvies, Paunch), Ruminant, Ruminantia, Ruminate, Rumination, Rump, Runcinate, Rupicaprinae, Rupicolous (Rupestrine, Rupicoline), Ruptile, Ruscinian, Rut, Rutilant, Rutilism, Rynchopidae, Ryophagous (Rypophagous).