Zane Home Library: Animal Kingdom - Vertebrates

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[0001 [0350 [0000 Ec[000000]LBf[16]aberrant BNot in accordance with a certain type. Ec[000000]f[16]LBaboral BOpposite the mouth. Ec[000000]f[16]LBabsorb BTo suck in, usually osmotically. BEc[000000]f[16]BLacellular BNot composed of cells, but a complete organism. Ec[000000]f[16]LBacridB Bitter or biting. Ec[000000]f[16]LBadhesive discB Round, sticky pad on a toad's thumb, used to grip the female during mating. Ec[000000]f[16]LBaffiliation BAssociation. Ec[000000]f[16]LBaggressiveB Combative or assertive. Ec[000000]f[16]LBagile BNimble. Ec[000000]f[16]LBalbinism BA lack of color-producing melanin in the skin. Ec[000000]f[16]LBalbumen BThe white of an egg. Ec[000000]f[16]LBalga BPrimitive water plant. Ec[000000]f[16]LBallantois BMembranous sac developed in the hindgut of embryos. Ec[000000]f[16]LBambiguities BUncertainties. Ec[000000]f[16]LBamnion BEmbryonic sac. Ec[000000]f[16]LBannelid BSegmented worm. Ec[000000]f[16]LBanole BNew World lizard with a distensible throat flap and the ability to change color. Ec[000000]f[16]LBanuran BFrog or toad. Ec[000000]f[16]LBaquatic BPertaining to or living in the water. Ec[000000]f[16]LBarbitrary BDepending on choice. Ec[000000]f[16]LBarboreal BPertaining to or living in trees. Ec[000000]f[16]LBarchetype BThe original object or being from which others may derive. Ec[000000]f[16]LBassemblage BCollection of persons or things. Ec[000000]f[16]LBautotroph BAn organism that manufactures its own food. Ec[000000]f[16]LBbasking BAbsorbing the rays of the sun for heat or light. Ec[000000]f[16]LBbinomial BHaving two names. Ec[000000]f[16]LBbiochemical BPertaining to the chemistry of living organisms. Ec[000000]f[16]LBbipedal BHaving two feet. Ec[000000]f[16]LBbivalve BAn animal with a two-valve shell. Ec[000000]f[16]LBblastopore BOpening of the gastrulan cavity. Ec[000000]f[16]LBblastulation BFormation of a hollow ball of cells. Ec[000000]f[16]LBbotanist BPerson who studies plant life. Ec[000000]f[16]LBbotany BThe study of plant life. Ec[000000]f[16]LBbreak point BLocation on a lizard's tail at which it may harmlessly break off during a predator-prey confrontation, allowing the lizard to escape. Ec[000000]f[16]LBbreed BTo produce offspring. Ec[000000]f[16]LBbulbous BRounded or swollen. Ec[000000]f[16]LBcaecilian BTropical, legless, burrowing amphibian. Ec[000000]f[16]LBcarapace BThe top portion of a turtle's shell. Ec[000000]f[16]LBcarbon dioxide BGaseous substance consisting of one molecule of carbon and two molecules of oxygen; it is exhaled by animals. Ec[000000]f[16]LBcarboniferous BA geologic division of the Paleozoic era, characterized by swamp formation and deposition of plant remains later hardened into coal. Ec[000000]f[16]LBcarnivorous BPertaining to flesh-eating or predatory animals. Ec[000000]f[16]LBcarrion BDead and decaying flesh. Ec[000000]f[16]LBcartilage BFlexible, bonelike tissue. BEc[000000]f[16]BLcategorize BClassify; separate into groups of similar things. Ec[000000]f[16]LBcellulose BStructural material of green plants. Ec[000000]f[16]LBcentriole BOrganelle adjacent to the nucleus. Ec[000000]f[16]LBcephalopod BMolluscs with a well-developed head, such as an octopus or squid. Ec[000000]f[16]LBchameleon BTropical, Old World lizard capable of changing color. Ec[000000]f[16]LBchemoreceptor BCell or organ sensitive to chemical change. Ec[000000]f[16]LBchitin BA horny substance forming the exoskeleton of insects and crustaceans. Ec[000000]f[16]LBchiton BElongated, hard-shelled, marine mollusc. Ec[000000]f[16]LBchloroplast BOrganelle containing chlorophyll that is found inside a plant cell. Ec[000000]f[16]LBchordate BAnimal with a notochord. Ec[000000]f[16]LBchromosome BNucleoprotein-containing body in a cell nucleus. Ec[000000]f[16]LBcilia BShort, hairlike particles. Ec[000000]f[16]LBciliate BProvided with cilia. Ec[000000]f[16]LBcloaca BCavity into which the intestinal, genital, and urinary tracts open in vertebrates, such as reptiles. Ec[000000]f[16]LBcnidarian BCoelenterate with nematocysts on tentacles. Ec[000000]f[16]LBcoldblooded BPertaining to body temperature that is regulated by the temperature of the environment. Ec[000000]f[16]LBcongregate BTo gather into a group. Ec[000000]f[16]LBconstituent BServing to make up a unit or whole. Ec[000000]f[16]LBconstrictor BSnake that suffocates its prey by crushing it in its coils. Ec[000000]f[16]LBconvention BUsage or custom. Ec[000000]f[16]LBcorona BRounded upper portion of the body. Ec[000000]f[16]LBcorrelate BPut into a causal, complementary, parallel, or reciprocal relationship. Ec[000000]f[16]LBcouplet BTwo successive lines. Ec[000000]f[16]LBcrescent BFigure of the moon as it appears in its first quarter, with concave and convex edges terminating in points. Ec[000000]f[16]LBcretaceous BThe third and final period of the Mesozoic era, characterized by the development of flowering plants and the disappearance of dinosaurs. Ec[000000]f[16]LBcriterion BStandard on which a decision may be based. Ec[000000]f[16]LBcrocodilian BA reptile of the order Crocodilia, which includes alligators, crocodiles, caimans, and gavials. Ec[000000]f[16]LBcrustacean BPredominantly aquatic arthropod with a segmented body; a chitinous exoskeleton; and paired, jointed limbs. Ec[000000]f[16]LBcrystallize BTo harden into crystals. Ec[000000]f[16]LBcutaneous respiration BOxygen-carbon dioxide exchange through the skin. Ec[000000]f[16]LBcuticle BOutermost epidermal layer. Ec[000000]f[16]LBcytological BPertaining to cells. Ec[000000]f[16]LBcytoplasm BThe protoplasm of a cell. Ec[000000]f[16]LBdecimate BLiterally, to destroy one in ten; figuratively, to nearly annihilate. Ec[000000]f[16]LBdeduce BTo infer from a general principle. Ec[000000]f[16]LBdeficiencies BShortages or insufficiencies. Ec[000000]f[16]LBdermal respiration BOxygen-carbon dioxide exchange through the skin. Ec[000000]f[16]LBdewlap BFold of loose skin hanging from the neck of certain animals. Ec[000000]f[16]LBdiaphragm BMembranous part that divides or separates. Ec[000000]f[16]LBdichotomous BDivided into two parts. Ec[000000]f[16]LBdioecious BHaving male sexual organs in one individual and female organs in another. Ec[000000]f[16]LBdisplayB Exhibition of behaviors designed to attract a mate or repulse enemies. Ec[000000]f[16]LBdivergent BDiffering from each other. Ec[000000]f[16]LBdormant BInactive, sleeping, or in suspended animation. Ec[000000]f[16]LBdorsal BPertaining to the back. Ec[000000]f[16]LBdynamic BChanging. Ec[000000]f[16]LBear drum BThin membrane covering, and transmitting sound into, the ear. Ec[000000]f[16]LBecdysis BThe act of shedding skin or clothes. Ec[000000]f[16]LBeclectic BConsisting of components from diverse sources. Ec[000000]f[16]LBegest BTo rid the body of. Ec[000000]f[16]LBelliptical BOval- or egg-shaped. Ec[000000]f[16]LBembryo BOrganism in its early stages of development, before full development, birth, or hatching. BEc[000000]f[16]BLembryonic BIn the early stages of development. Ec[000000]f[16]LBemit BTo send out or give; to utter. Ec[000000]f[16]LBendangered BFaced with the danger of extinction. Ec[000000]f[16]LBendoplasmic reticulum BSite of protein synthesis in a cell. Ec[000000]f[16]LBendoskeleton BInternal skeleton. Ec[000000]f[16]LBenhance BIncrease or augment. Ec[000000]f[16]LBenteron BAlimentary canal. Ec[000000]f[16]LBenvironment BSurrounding circumstances or conditions. Ec[000000]f[16]LBenvirons BSurrounding area. Ec[000000]f[16]LBenzyme BProtein produced by living organisms, functioning as a biochemical catalyst. Ec[000000]f[16]LBepidermis BOutermost protective layer. Ec[000000]f[16]LBeukaryotic BComposed of one or more cells with visible nuclei. Ec[000000]f[16]LBeumetazoan BMulticellular animals, excluding sponges. Ec[000000]f[16]LBeversible BAble to turn inside out. Ec[000000]f[16]LBevolve BTo develop by evolutionary processes from a primitive to a more highly organized form. Ec[000000]f[16]LBexcrete BTo eliminate from blood, tissues, or organs. Ec[000000]f[16]LBexcretion BA substance eliminated from an organism. Ec[000000]f[16]LBexcurrent BDuct in which there is an outgoing flow. Ec[000000]f[16]LBexternal BOn the outside. Ec[000000]f[16]LBextinct BNo longer existing; having no living descendants. Ec[000000]f[16]LBextinction BThe act of extinguishing or of being extinguished. BEc[000000]f[16]BLextrude BTo force or push out. Ec[000000]f[16]LBexude BTo ooze. Ec[000000]f[16]LBfang BLong, pointed tooth, especially the hollow or grooved tooth with which a snake injects its venom. Ec[000000]f[16]LBferal BWild or untamed. Ec[000000]f[16]LBfertilize BTo provide with sperm or pollen. Ec[000000]f[16]LBfilarial BPertaining to slender, filamentous nematodes. Ec[000000]f[16]LBfission BDivision of cells into two or more parts. Ec[000000]f[16]LBflagella BWhiplike extension of a cell. Ec[000000]f[16]LBflotsam BDiscarded odds and ends. Ec[000000]f[16]LBforelimb BAnterior appendage. Ec[000000]f[16]LBforeshorten BTo shorten beforehand. Ec[000000]f[16]LBfree-swimming BSwimming independently or on one's own power. Ec[000000]f[16]LBgamete BGerm cells; sex cells. Ec[000000]f[16]LBganglia BMasses of nerve tissue external to the brain or spinal cord. Ec[000000]f[16]LBgastrodermis BA layer protecting the stomach cavity. Ec[000000]f[16]LBgastrulation BFormation of layers of cells. Ec[000000]f[16]LBgelatinous BViscous; resembling gelatin. Ec[000000]f[16]LBgenealogic BPertaining to the descent of an individual. Ec[000000]f[16]LBgenera BPlural of IgenusI.I Ec[000000]f[16]LIIBgill-breathing BUsing gills to filter oxygen from water. Ec[000000]f[16]LBglochidium BLarva of freshwater mussels. Ec[000000]f[16]LBgregarious BTending to move in or form a group with others of the same kind, such as a herd, pack, or flock. Ec[000000]f[16]LBhabitat BArea or type of environment in which an organism normally lives or inhabits. Ec[000000]f[16]LBhemichordate BHaving an outgrowth of pharyngeal wall homologous to notochord. Ec[000000]f[16]LBhermaphroditic BHaving both male and female reproductive organs. Ec[000000]f[16]LBheterotrophically BAs a consumer. Ec[000000]f[16]LBhibernate BPass the winter in a dormant state. Ec[000000]f[16]LBhierarchies BGroups organized in ranks. Ec[000000]f[16]LBhigh tide BThe time when waves rise to their highest point on a shoreline. Ec[000000]f[16]LBholozoic BObtaining food by ingesting complex organic matter. Ec[000000]f[16]LBhomoiothermic BRegulating one's own body temperature metabolically; warmblooded. Ec[000000]f[16]LBhomologous BResembling in structure and origin. Ec[000000]f[16]LBhydrostatic BRegulating buoyancy. Ec[000000]f[16]LBhylid BTree frog. Ec[000000]f[16]LBhypothetical BDepending on supposition. Ec[000000]f[16]LBiguanid BLarge tropical American lizard, often with spiny projections along the back. Ec[000000]f[16]LBimmature BNot having reached adulthood. Ec[000000]f[16]LBimmerse BTo cover completely. Ec[000000]f[16]LBimpermeable BImpassable. Ec[000000]f[16]LBinanimate BNot alive. Ec[000000]f[16]LBincubate BTo develop and hatch. Ec[000000]f[16]LBindeterminable BIncapable of being definitively decided. Ec[000000]f[16]LBingestion BThe act of taking in for digestion purposes. Ec[000000]f[16]LBinorganic BOther than plant or animal. Ec[000000]f[16]LBinsecticide BA substance used to kill insects. Ec[000000]f[16]LBinsectivorous BInsect-eating. Ec[000000]f[16]LBinsoluble BUnable to be dissolved. Ec[000000]f[16]LBinternal BOn the inside. Ec[000000]f[16]LBinterrelate BBring into mutual relation. Ec[000000]f[16]LBintertidal zone BPortion of the shoreline that lies between high and low tides. Ec[000000]f[16]LBintruder BOne that enters uninvited or inappropriately. Ec[000000]f[16]LBinvertebrate BAn animal lacking a spinal column. Ec[000000]f[16]LBiodine BElement whose compounds are commonly used in germicides, antiseptics, and dyes. Ec[000000]f[16]LBJacobson's organ BOlfactory organ of snakes, located on the roof of the mouth. Ec[000000]f[16]LBlamella BOne of the thin scales that make up gills. Ec[000000]f[16]LBlarva BThe early form of any animal (e.g., insects or amphibians) that must undergo metamorphosis before reaching adult form. Ec[000000]f[16]LBlarval stage BThe portion of the insect life cycle shortly after hatching. Ec[000000]f[16]LBlaterally BMoving towards or along the sides. Ec[000000]f[16]LBlife cycle BA series of developmental changes. Ec[000000]f[16]LBligament BA tissue connecting bones or cartilage. Ec[000000]f[16]LBlimestone BA type of rock commonly used to manufacture lime and cement. Ec[000000]f[16]LBlizard BReptile with an elongated, scaly body; four legs; and a tapering tail. Ec[000000]f[16]LBlocomotion BIndependent movement. Ec[000000]f[16]LBlophophorate BHaving a horseshoe-shaped, tentacle-supporting organ. Ec[000000]f[16]LBluminescent BLight-producing. Ec[000000]f[16]LBlung-breathing BUsing lungs to filter oxygen from the atmosphere. Ec[000000]f[16]LBlysosome BRounded organelles thought to prevent self-digestion of a cell. Ec[000000]f[16]LBmammary gland BMilk-producing gland; the breast. Ec[000000]f[16]LBmandible BLower jaw. Ec[000000]f[16]LBmarine BPertaining to salt or brackish water. Ec[000000]f[16]LBmarsupial BFur-bearing animal with a pouchlike structure in which the young develop. Ec[000000]f[16]LBmature BHaving attained adulthood. Ec[000000]f[16]LBmaxillary BJawbone. Ec[000000]f[16]LBmechanism BBehavior or collection of behaviors that produce a desired end. Ec[000000]f[16]LBmechanoreceptor BCell or organ sensitive to contact, pressure, or gravity. Ec[000000]f[16]LBmesoglea BIntermediate, gelatinous layer found in sponges and coelenterates. Ec[000000]f[16]LBmesozoan BSmall, multicellular marine parasites. Ec[000000]f[16]LBMesozoic era BThird era of geologic time, which was dominated by reptilian life. Ec[000000]f[16]LBmetabolism BInteraction of processes that support life within an organism. Ec[000000]f[16]LBmetamorphosis BTransformation into a completely different form. Ec[000000]f[16]LBmetazoan BAnimal whose cells are organized into tissues and coordinated by a nervous system. Ec[000000]f[16]LBmigrate BTo move from one location to another, usually in response to seasonal changes or population pressure. Ec[000000]f[16]LBmillennia BThe plural of ImillenniumI, which is 1,000 years. Ec[000000]f[16]LBmimic BTo copy or duplicate a behavior or an appearance. BEc[000000]f[16]BLmitochondria BLong, cellular organelles that produce energy through cellular respiration. Ec[000000]f[16]LBmitotic division BReplication of DNA during cell division, resulting in both new cells having the same chromosomes as the parent cell. Ec[000000]f[16]LBmodification BChange. Ec[000000]f[16]LBmolecule BSmallest unit of a compound that retains its characteristics. Ec[000000]f[16]LBmonoecious BHaving both male and female sex organs. Ec[000000]f[16]LBmorphological BPertaining to biological form and structure. Ec[000000]f[16]LBmorphology BBiological form and structure. Ec[000000]f[16]LBmount BThe act of climbing onto a female animal in order to copulate. Ec[000000]f[16]LBmutation BChange in the structure of the genetic material. Ec[000000]f[16]LBnematocyst BStinging cell. Ec[000000]f[16]LBnematode BUnsegmented worm. Ec[000000]f[16]LBneotenic BPermanently immature. Ec[000000]f[16]LBnervous system BInternal communication network in animals that senses, transmits, and responds to both internal and external stimuli. Ec[000000]f[16]LBnictitating membrane BThe inner eyelid that protects the eye and is often transparent. Ec[000000]f[16]LBnitrogen BGaseous element comprising four-fifths of the earth's atmosphere. Ec[000000]f[16]LBnocturnal BPertaining to night. Ec[000000]f[16]LBnomenclature BName or designation. Ec[000000]f[16]LBnonmotile BFixed; unable to move. Ec[000000]f[16]LBnonvenomous BNonpoisonous. BEc[000000]f[16]BLnotochord BPrimitive backbone. Ec[000000]f[16]LBnoxious BHarmful. Ec[000000]f[16]LBnucleoli BRound bodies found in the nucleus and consisting mainly of RNA. Ec[000000]f[16]LBnucleusB Organelle essential to the life functions of a cell. Ec[000000]f[16]LBnuptial BPertaining to a coupling. Ec[000000]f[16]LBobscure BIndistinct or inconspicuous. Ec[000000]f[16]LBobviate BTo make unnecessary. Ec[000000]f[16]LBolfactory BPertaining to the sense of smell. Ec[000000]f[16]LBoligochaete BHermaphroditic terrestrial or aquatic annelid lacking a specialized head. Ec[000000]f[16]LBomnivore BAn animal that eats both plants and other animals. Ec[000000]f[16]LBoptimal BThe best. Ec[000000]f[16]LBorganelle BA cellular inclusion with a special function. Ec[000000]f[16]LBorganism BAnything capable of life. Ec[000000]f[16]LBosmotically BThrough absorption. Ec[000000]f[16]LBossified BTurned to a bonelike substance. Ec[000000]f[16]LBovaries BEgg-producing organs. Ec[000000]f[16]LBoverlaid BSet over or upon. Ec[000000]f[16]LBoviduct BPassage that guides eggs. Ec[000000]f[16]LBoxygen BGaseous element comprising more than one-fifth of the earth's atmosphere and required to sustain animal life. Ec[000000]f[16]LBparalyzed BUnable to move. Ec[000000]f[16]LBparasitic BDeriving nourishment from another species, usually while causing it some harm. Ec[000000]f[16]LBparazoan BMulticellular animal with no tissue organization. Ec[000000]f[16]LBpelagic BPertaining to middle and surface levels of a sea or ocean. Ec[000000]f[16]LBpellicle BFilmy, protective covering. Ec[000000]f[16]LBpenchant BInclination. Ec[000000]f[16]LBperiostracum BExternal layer of a seashell. Ec[000000]f[16]LBpermeable BAllowing passage, as through a membrane. Ec[000000]f[16]LBpharyngeal BPertaining to the pharynx. Ec[000000]f[16]LBphotoreceptor BAn organ sensitive to light. Ec[000000]f[16]LBphotosynthesis BProduction of carbohydrates by plants. Ec[000000]f[16]LBphyla BLarge taxonomic divisions. Ec[000000]f[16]LBphysiology BFunction and activity of an organism. Ec[000000]f[16]LBplasma BLiquid part of various body fluids. Ec[000000]f[16]LBplastron BVentral side of a turtle's or tortoise's shell. Ec[000000]f[16]LBpoikilothermic BPertaining to body temperature that is regulated by the temperature of the environment; coldblooded. Ec[000000]f[16]LBpolychaete BBristleworm. Ec[000000]f[16]LBprecursor BSomething that precedes another event or thing. Ec[000000]f[16]LBpredator BAn animal that hunts and kills other animals. Ec[000000]f[16]LBpredatory BPertaining to the behaviors and characteristics of predators. Ec[000000]f[16]LBprehensile BAble to grasp or hold. Ec[000000]f[16]LBprey BAnimals hunted and killed for food. Ec[000000]f[16]LBprimitive BOf early origin. Ec[000000]f[16]LBproboscis BAny elongated, tubular process. Ec[000000]f[16]LBprokaryotic BNot having a distinct cellular nucleus. Ec[000000]f[16]LBpropulsion BThe force behind movement. Ec[000000]f[16]LBprotochordate BAn animal with gill slits, a notochord, a central nervous system, and a postanal tail. Ec[000000]f[16]LBprotonephridia BExcretory structure with a flame cell. Ec[000000]f[16]LBprotostome BHaving a true coelom, with the blastopore forming a mouth or a mouth and anus. Ec[000000]f[16]LBprotozoan BSingle-celled animal. Ec[000000]f[16]LBprotruding BExtending beyond something. Ec[000000]f[16]LBpseudopod BA footlike process. Ec[000000]f[16]LBpupil BAn opening in the center of the eyes. Ec[000000]f[16]LBradial symmetry BA state of having body parts arranged around an axis.Ec[000000]f[16]LBradiate BRadially symmetrical animal. Ec[000000]f[16]LBrainpool BPool of rainwater temporarily sustaining life. Ec[000000]f[16]LBravine BDeep cleft in the earth. Ec[000000]f[16]LBregenerate BTo grow anew. Ec[000000]f[16]LBreptile BLung-breathing, poikilothermic vertebrate with scales or plates for skin. Ec[000000]f[16]LBrespiration BBreathing. Ec[000000]f[16]LBretractile BAble to be drawn inwards. Ec[000000]f[16]LBrobust BSturdy; vigorous. Ec[000000]f[16]LBrotifer BAquatic, microscopic animal with its anterior end forming a retractile disk. Ec[000000]f[16]LBrudimentary BImperfectly developed. Ec[000000]f[16]LBsalivary gland BGland that secretes a liquid that moistens the mouth and contains digestive enzymes. Ec[000000]f[16]LBsaprophytic BA plant that feeds on dead and decaying matter. Ec[000000]f[16]LBsaprozoic BLiving on dead and decaying animal matter. Ec[000000]f[16]LBsavanna BFlat, treeless, subtropical grassland. Ec[000000]f[16]LBscale BSmall, platelike, external structure. Ec[000000]f[16]LBscavenger BAn animal that feeds on dead, decaying matter. Ec[000000]f[16]LBscute BBony, external plate. Ec[000000]f[16]LBsecrete BTo form and give off. Ec[000000]f[16]LBsecretions BSubstance or fluid produced and exuded by glands. Ec[000000]f[16]LBsemipermeable BSelectively allowing free passage. Ec[000000]f[16]LBserpentine BSnakelike. Ec[000000]f[16]LBsessile BAttached directly by the base; not free living. Ec[000000]f[16]LBsiliceous BPertaining to silica. Ec[000000]f[16]LBslider BPopular name for a turtle that basks on flat rocks and slides into the water when alarmed. Ec[000000]f[16]LBslough BShed. Ec[000000]f[16]LBsluggish BSlow-moving. Ec[000000]f[16]LBsnorkel BPipe or tube used for breathing while underwater. Ec[000000]f[16]LBsomite BOne of a series of segments into which many animals, especially worms, may be divided. Ec[000000]f[16]LBspat BThe young of bivalve molluscs. Ec[000000]f[16]LBspecimen BIndividual taken or observed as a sample. Ec[000000]f[16]LBspectrum BSequence of related qualities. Ec[000000]f[16]LBspermatheca BA sac for storing spermatozoa. Ec[000000]f[16]LBspermatophore BA capsule of albuminous matter containing sperm. Ec[000000]f[16]LBstatic BRemaining unchanged. Ec[000000]f[16]LBstatocyst BSensory vesicle concerned with the perception of gravity. Ec[000000]f[16]LBstimuli BAgents causing a response in an organism. Ec[000000]f[16]LBstreamlined BHaving a construction that offers minimum resistance to wind or water. Ec[000000]f[16]LBsubspecies BTypically, a separate breeding group within a species. Ec[000000]f[16]LBsubstrate BBase to which an animal or plant attaches. Ec[000000]f[16]LBsubterranean BUnder the earth's surface. Ec[000000]f[16]LBsuccumb BTo be killed. Ec[000000]f[16]LBsuperficial BObvious or readily apparent.B Ec[000000]f[16]BLsupplement BSomething added to extend or strengthen a whole. Ec[000000]f[16]LBsustain BMaintain; support. Ec[000000]f[16]LBsynthetic BPertaining to the production of new materials. Ec[000000]f[16]LBtadpole BImmature frog or toad, with gills and a tail. Ec[000000]f[16]LBtaxa BCategories. Ec[000000]f[16]LBtaxonomist BPerson who classifies plants and animals. Ec[000000]f[16]LBterrestrial BPertaining to dry land. Ec[000000]f[16]LBterritorial BRestricted to a certain locale. Ec[000000]f[16]LBterritories BAreas considered homelands and defended against intruders. Ec[000000]f[16]LBtetrapod BAnimal with four feet or legs. Ec[000000]f[16]LBthecodont BTriassic reptiles presumed to be common ancestors of dinosaurs, birds, and crocodiles. Ec[000000]f[16]LBthermoreceptor BCell or organ sensitive to change in temperature. Ec[000000]f[16]LBtoxic BPoisonous. Ec[000000]f[16]LBTransform BTo change in appearance or structure. Ec[000000]f[16]LBtransition BMovement from one form or place to another. Ec[000000]f[16]LBTriassic BEarly period of the Mesozoic era. Ec[000000]f[16]LBtrinomial BHaving three names. Ec[000000]f[16]LBtrochophore BFree-swimming larva with a preoral whorl of cilia. Ec[000000]f[16]LBtuatara BLizardlike reptile of New Zealand. Ec[000000]f[16]LBtunicate BChordate marine animal with a tough outer covering.Ec[000000]f[16]LBtypologic BRelating to classification based on type. BEc[000000]f[16]BLunicelled BHaving one cell. Ec[000000]f[16]LBunpalatable BHaving an unpleasant taste. Ec[000000]f[16]LBurea BCompound found in urine and sweat. Ec[000000]f[16]LBuric acid BMain constituent in the fluid excretions of birds and reptiles. Ec[000000]f[16]LBvacuole BSpace in a cell's cytoplasm containing air, water, or some other material. Ec[000000]f[16]LBvegetarian BA plant eater. Ec[000000]f[16]LBveliger BSecond-stage larva, with a head bearing a veil-like structure. Ec[000000]f[16]LBvenom BPoison produced by animals to kill or immobilize prey. Ec[000000]f[16]LBvenomous BPoisonous. Ec[000000]f[16]LBventral BPertaining to the abdominal surface or underside. Ec[000000]f[16]LBvertebra BBony portion of the spinal column. Ec[000000]f[16]LBvertebrate BAnimal with a backbone. Ec[000000]f[16]LBvesicle BBladderlike air-space in tissue. Ec[000000]f[16]LBwarning coloration BProtective coloring that wards off predators. Ec[000000]f[16]LBzoology BThe study of animal life. Ec[000000]f[16]LBzygote BCell formed by the union of two gametes.B B