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During the mid-twentieth century, Virginia Apgar worked as an obstetrical anesthesiologist and gave drugs to women that reduced their pain during c
Apgar ScoreNewborn infants--Medical examinationsNewborn infantsObstetricsInfant, NewbornThe first successful cloning of a gaur in 2000 by Advanced Cell Technology involved the cells of two animals: an egg cell from a domestic cow and a
GaurCloningCattle--CloningExperimentsOrganismsThe Southern Gastric Brooding Frog (Rheobotrahcus silus) was a frog species that lived in Australia. It was declared extinct in 2002.
EggsFrogsAustraliaTadpolesAmphibians--LarvaeChloroplasts are the organelles in plant and algal cells that conduct photosynthesis.
ChloroplastsPlastidsChloroplast membranesThylakoidsChlorophyllMitochondria are organelles found in the cytoplasm of eukaryotic cells. They are composed of an outer membrane and an inner membrane.
Cell organellesMitochondriaEukaryotic cellsMitochondrionOrganellesY-chromosomes exist in the body cells of many kinds of male animals.
Y ChromosomeX chromosomeSex ChromosomesChromosomesSex ChromatinThe crystal jellyfish, Aequorea victoria, produces and emits light, called bioluminescence.
Green fluorescent proteinFluorescent polymersProteinsBiofluorescenceLuminescence