pistil the term for the female central reproductive organ in which the other flower parts are...
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PISTILPISTIL
the term for the the term for the female central female central reproductive organ in reproductive organ in which the other flower which the other flower parts are arranged parts are arranged
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StigmaStigma
part of a pistil which has no outer layer of “skin”, and is fitted to receive the pollen
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the part of the pistil the part of the pistil that is a tube-like that is a tube-like figure extending figure extending from the stigma from the stigma
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OVARYOVARY The ovule-bearing The ovule-bearing
lower part of a lower part of a pistil that ripens pistil that ripens into a fruit into a fruit
Ovary
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The pollen-producing reproductive organ of a
The pollen-producing reproductive organ of a
flower, usually consisting of a filament and an anther
flower, usually consisting of a filament and an anther
StamenStamen
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AntherAnther
the pollen-the pollen-bearing part of bearing part of a stamena stamen
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FilamentFilament the stalk like portion of a stamen supporting the antherthe stalk like portion of a stamen supporting the anther
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Guard cellGuard cell
One of the paired One of the paired epidermal cells epidermal cells that control the that control the opening and opening and closing of a closing of a stoma in plant stoma in plant tissue tissue
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StomataStomata tiny tiny
openings openings in the in the “skin” of a “skin” of a plant, plant, through through which which gases and gases and water water vapor pass vapor pass
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XylemXylem
The system of vessels that transports The system of vessels that transports water in a plant water in a plant
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PhloemPhloem
The system of vessels in a plant The system of vessels in a plant that carries food from the leaves that carries food from the leaves to the rest of the plant to the rest of the plant
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GymnospermGymnosperm
A plant, A plant, such as a such as a cycad or cycad or conifer, conifer, whose whose seeds are seeds are not not enclosed enclosed within an within an ovaryovary
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AngiospermAngiosperm
a plant having its seeds enclosed in an a plant having its seeds enclosed in an ovary; a flowering plant ovary; a flowering plant
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Circulatory SystemCirculatory System
the system of organs and the system of organs and tissues, including the heart, tissues, including the heart, blood, blood vessels, lymph, blood, blood vessels, lymph, lymphatic vessels, and lymph lymphatic vessels, and lymph glands, involved in circulating glands, involved in circulating blood and lymph through the blood and lymph through the body body
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Digestive systemDigestive system
The alimentary canal The alimentary canal together with the salivary together with the salivary glands, liver, pancreas, and glands, liver, pancreas, and other organs of digestion other organs of digestion
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Endocrine SystemEndocrine System
The bodily system The bodily system that consists of that consists of the endocrine the endocrine glands and glands and functions to functions to regulate body regulate body activities activities
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Excretory systemExcretory system
the system that removes the system that removes wastes from the body and wastes from the body and regulates water in the bodyregulates water in the body
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Immune SystemImmune System The integrated body The integrated body
system of organs, system of organs, tissues, cells, and cell tissues, cells, and cell products such as products such as antibodies that antibodies that differentiates self from differentiates self from nonself and neutralizes nonself and neutralizes potentially harmful potentially harmful bacteria organisms or bacteria organisms or
substancessubstances
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Integumenatry SystemIntegumenatry System
The bodily system The bodily system consisting of the skin consisting of the skin and its associated and its associated structures, such as structures, such as the hair, nails, and the hair, nails, and sweat glandssweat glands
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Muscular SystemMuscular System
All the All the muscles of muscles of the body the body collectively, collectively, especially especially the voluntary the voluntary skeletal skeletal musclesmuscles
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Skeletal SystemSkeletal System
system that consists of the system that consists of the bones, their associated bones, their associated cartilages, and the joints, cartilages, and the joints, and supports and protects and supports and protects the body, produces blood the body, produces blood cells, and stores minerals cells, and stores minerals
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Nervous SystemNervous System
the system of nerves and nerve centers in an the system of nerves and nerve centers in an animal or human, including the brain, spinal animal or human, including the brain, spinal cord, and nerves cord, and nerves
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Reproductive SystemReproductive System
The complex of male or female The complex of male or female gonads, associated ducts, and gonads, associated ducts, and external genitalia concerned external genitalia concerned with sexual reproduction with sexual reproduction
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Respiratory SystemRespiratory System
The integrated The integrated system of organs system of organs involved in the involved in the intake and intake and exchange of exchange of oxygen and carbon oxygen and carbon dioxide between an dioxide between an organism and the organism and the environment environment
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BacteriaBacteria
Microorganisms Microorganisms made up of a made up of a single cell that single cell that has no distinct has no distinct nucleus. nucleus. Bacteria are Bacteria are living living organisms.organisms.
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AntibioticAntibiotic ““against life” A against life” A
substance substance produced by or produced by or derived from derived from certain fungi, certain fungi, bacteria, and other bacteria, and other organisms, that organisms, that can destroy or stop can destroy or stop the growth of other the growth of other microorganisms microorganisms
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VirusVirus
a strand of a strand of nucleic acid nucleic acid encased in a encased in a protein coat that protein coat that can infect cells can infect cells and replicate with and replicate with them. Viruses them. Viruses must have a host must have a host cell to survive cell to survive and to reproduce.and to reproduce.
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AIDSAIDS
Acquired Immune Acquired Immune deficiency deficiency syndrome - An syndrome - An infectious disease infectious disease of the immune of the immune system caused by system caused by an human an human immunodeficiency immunodeficiency virus (HIV) virus (HIV)
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Host CellHost Cell
a living cell in which a virus reproducesa living cell in which a virus reproduces
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Lytic CycleLytic Cycle
one of the one of the two cycles two cycles of viral of viral reproductionreproduction
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Lysogenic CycleLysogenic Cycle
The The lysogenic cyclelysogenic cycle is complementary to is complementary to the lytic the lytic cyclecycle for viral entry and for viral entry and reproduction within cells reproduction within cells
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RetrovirusesRetroviruses
an RNA virus an RNA virus that is that is replicated in replicated in a host cella host cell that that produce produce DNA from its DNA from its RNA genomeRNA genome
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Natural SelectionNatural Selection
Survival of the fittestSurvival of the fittest
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AdaptationAdaptation
The ability to change over a period of timeThe ability to change over a period of time
HUMAN
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BehaviorBehavior
The actions displayed by an organism in The actions displayed by an organism in response to its environment response to its environment
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ExtinctionExtinction
coming to an end or dying out coming to an end or dying out
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PhylogenyPhylogeny
the the development development or evolution of or evolution of a particular a particular group of group of organisms organisms
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SpeciationSpeciation
The evolutionary The evolutionary formation of new formation of new biological species, biological species, usually by the usually by the division of a single division of a single species into two or species into two or more genetically more genetically distinct onesdistinct ones
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CladogramCladogram
a diagram a diagram depicting the depicting the change from change from the organisms the organisms ancestorsancestors
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ATPATP
Adenosine Triphosphate - A key energy-Adenosine Triphosphate - A key energy-carrying molecule in biological systems carrying molecule in biological systems
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PhotosynthesisPhotosynthesis
the process the process in which in which organisms organisms use light use light energy to energy to produce produce ATP and ATP and other other organic organic molecules molecules from from inorganic inorganic moleculesmolecules
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RespirationRespiration
The uptake The uptake of carbon of carbon dioxide and dioxide and the the exhaling of exhaling of oxygen at oxygen at the same the same timetime
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MetabolismMetabolism
the sum of all the chemical processes occurring the sum of all the chemical processes occurring in an organism, happens in the mitochondriain an organism, happens in the mitochondria
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Krebs CycleKrebs Cycle
cyclic biochemical pathway of cellular cyclic biochemical pathway of cellular respiration respiration
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Calvin CycleCalvin Cycle
involving carbon involving carbon fixation and fixation and carbohydrate carbohydrate formation and is the formation and is the second major second major pathway in pathway in photosynthesis photosynthesis
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Trophic LevelTrophic Level
group of group of organisms organisms that occupy that occupy the same the same position in a position in a food chain food chain
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EcosystemEcosystem a system formed by the interaction of a a system formed by the interaction of a
community of organisms with their community of organisms with their environmentenvironment
Marine Life Ecosystem
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BiomeBiome
a major type of terrestrial ecological a major type of terrestrial ecological community such as a grassland or a community such as a grassland or a desert desert
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Food ChainFood Chain
the chain the chain from a food from a food source to source to the ultimate the ultimate consumer consumer
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Food PyramidFood Pyramid
successive levels of successive levels of predation in a food chain predation in a food chain represented schematically represented schematically as a pyramid because as a pyramid because upper levels normally upper levels normally consist of decreasing consist of decreasing numbers of larger predatorsnumbers of larger predators
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Food WebFood Web
complex of interrelated food chains in an complex of interrelated food chains in an ecological community ecological community
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PredationPredation
The The capturing of capturing of prey as a prey as a means of means of maintaining maintaining lifelife
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SymbiosisSymbiosis the living together of two dissimilar the living together of two dissimilar
organisms, as in mutualism,organisms, as in mutualism,commensalism, or parasitism commensalism, or parasitism
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CommensalismCommensalism
A symbiotic relationship in A symbiotic relationship in which one organism which one organism derives benefit and the derives benefit and the other is unharmedother is unharmed
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MutualismMutualism
An association An association between between organisms of two organisms of two different species different species in which each in which each member benefits member benefits
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ParasitismParasitism
a relation between organisms in which one a relation between organisms in which one lives as a parasite on another lives as a parasite on another
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Carbon CycleCarbon Cycle the cycle of carbon the cycle of carbon
in living beings in in living beings in which carbon which carbon dioxide is fixed by dioxide is fixed by photosynthesis to photosynthesis to form organic form organic nutrients and is nutrients and is ultimately restored ultimately restored to the inorganic to the inorganic state by respiration state by respiration and protoplasmic and protoplasmic decay decay
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Greenhouse EffectGreenhouse Effect
heating of a planet heating of a planet caused by the caused by the trapping of heat trapping of heat energy by the energy by the carbon dioxide carbon dioxide trapping heat trapping heat
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Water CycleWater Cycle The cycle of evaporation and The cycle of evaporation and
condensation that controls condensation that controls the distribution of the earth's the distribution of the earth's water as it evaporates from water as it evaporates from bodies of water, condenses, bodies of water, condenses, precipitates, and returns to precipitates, and returns to those bodies of water those bodies of water
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the continuous sequence the continuous sequence of events by which of events by which atmospheric nitrogen and atmospheric nitrogen and nitrogenous compounds nitrogenous compounds in the soil are converted, in the soil are converted, as by nitrification and as by nitrification and nitrogen fixation, into nitrogen fixation, into substances that can be substances that can be utilized by green plants, utilized by green plants, the substances returning the substances returning to the air and soil as a to the air and soil as a result of the decay of the result of the decay of the plants and denitrification plants and denitrification
Nitrogen CycleNitrogen Cycle
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