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OpenStem
@openstem · Joined Jul 2026
7420 public items8 groups
Collection5 items
01Biology · L4 · Hardy-Weinberg Model
02Biology · L4 · Forces That Change Allele Frequencies
03Biology · L4 · Population Genetics Quiz
+2 moreBiology · L4 · Population Genetics
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Biology · L4 · Population GeneticsCollection5 items
01Biology · L4 · Cardiac Output and the Cardiac Cycle
02Biology · L4 · Blood Pressure Regulation
03Biology · L4 · The Baroreceptor Reflex
+2 moreBiology · L4 · Cardiovascular Physiology
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Biology · L4 · Cardiovascular PhysiologyCollection5 items
01Biology · L4 · Ventilation Mechanics and Lung Volumes
02Biology · L4 · Gas Transport and Chemoreceptor Control
03Biology · L4 · Respiratory Physiology
+2 moreBiology · L4 · Respiratory Physiology
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Biology · L4 · Respiratory PhysiologyCollection5 items
01Biology · L4 · Nephron Function In Depth
02Biology · L4 · Hormonal Regulation Of Fluid Balance
03Biology · L4 · Renal physiology: filtration, reabsorption, and hormonal control
+2 moreBiology · L4 · Renal Physiology
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Biology · L4 · Renal PhysiologyCollection5 items
01Biology · L4 · Hormone Classes & Receptor Mechanisms
02Biology · L4 · Hypothalamic-Pituitary Axes
03Biology · L4 · Endocrine physiology — hormone signalling and the pituitary axes
+2 moreBiology · L4 · Endocrine Physiology
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Biology · L4 · Endocrine PhysiologyCollection5 items
01Biology · L4 · Motor Units & Muscle Fiber Types
02Biology · L4 · Bone Remodeling & Calcium Homeostasis
03Biology · L4 · Musculoskeletal physiology: motor control and bone homeostasis
+2 moreBiology · L4 · Musculoskeletal Physiology
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Biology · L4 · Musculoskeletal PhysiologyCollection5 items
01Biology · L4 · Horizontal Gene Transfer
02Biology · L4 · Antibiotic Resistance & Virulence
03Biology · L4 · Microbial Genetics and Pathogenesis
+2 moreBiology · L4 · Microbial Genetics and Pathogenesis
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Biology · L4 · Microbial Genetics and PathogenesisCollection5 items
01Biology · L4 · Plant Hormones
02Biology · L4 · Water Transport and Tropisms
03Biology · L4 · Plant Physiology and Hormones
+2 moreBiology · L4 · Plant Physiology and Hormones
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Biology · L4 · Plant Physiology and HormonesCollection5 items
01Biology · L4 · Community Interactions and Succession
02Biology · L4 · Ecosystem Ecology and Conservation Biology
03Biology · L4 · Community and Ecosystem Ecology Quiz
+2 moreBiology · L4 · Community and Ecosystem Ecology
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Biology · L4 · Community and Ecosystem EcologyCollection5 items
01Biology · L4 · Michaelis-Menten Enzyme Kinetics
02Biology · L4 · Cellular Respiration Overview
03Biology · L4 · Enzyme Kinetics and Metabolism Quiz
+2 moreBiology · L4 · Enzyme Kinetics and Metabolic Pathways
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Biology · L4 · Enzyme Kinetics and Metabolic PathwaysCollection5 items
01Biology · L4 · Antibody Structure and MHC
02Biology · L4 · Complement and Hypersensitivity
03Biology · L4 · Humoral Immunity
+2 moreBiology · L4 · Immunology
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Biology · L4 · ImmunologyCollection5 items
01Biology · L4 · The Action Potential in Ion-Channel Detail
02Biology · L4 · Synaptic Transmission and Neurotransmitters
03Biology · L4 · Neurobiology Quiz
+2 moreBiology · L4 · Neurobiology
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Biology · L4 · NeurobiologyCollection5 items
01Biology · L4 · Early Embryonic Development
02Biology · L4 · Pattern Formation and Stem Cells
03Biology · L4 · Developmental Biology Quiz
+2 moreBiology · L4 · Developmental Biology
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Biology · L4 · Developmental BiologyCollection5 items
01Biology · L4 · Innate Behavior and Learning
02Biology · L4 · Communication, Foraging, and Social Behavior
03Biology · L4 · Animal Behavior and Ethology Quiz
+2 moreBiology · L4 · Animal Behavior and Ethology
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Biology · L4 · Animal Behavior and EthologyCollection4 items
01Biology · L4 · Patterns and Processes in Biogeography
02Biology · L4 · Biogeography Quiz
03Biogeography
+1 moreBiology · L4 · Biogeography
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Biology · L4 · BiogeographyCollection4 items
01Biology · L4 · Muscle Mechanics and Locomotor Biomechanics
02Biology · L4 · Biomechanics and Animal Locomotion Quiz
03Biomechanics and Animal Locomotion
+1 moreBiology · L4 · Biomechanics and Animal Locomotion
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Biology · L4 · Biomechanics and Animal LocomotionCollection4 items
01Biology · L4 · Mendelian and Non-Mendelian Inheritance Patterns
02Biology · L4 · Classical Genetics and Inheritance Patterns Quiz
03Classical Genetics and Inheritance Patterns
+1 moreBiology · L4 · Classical Genetics and Inheritance Patterns
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Biology · L4 · Classical Genetics and Inheritance PatternsCollection5 items
01Biology · L4 · Homology, Analogy, and Body Plans
02Biology · L4 · Locomotor and Sensory Anatomy Across Vertebrates
03Biology · L4 · Comparative Vertebrate Anatomy Quiz
+2 moreBiology · L4 · Comparative Vertebrate Anatomy
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Biology · L4 · Comparative Vertebrate AnatomyCollection5 items
01Biology · L4 · Extinction Risk and Population Viability
02Biology · L4 · Conservation Strategies and Ecosystem Management
03Biology · L4 · Conservation Biology Quiz
+2 moreBiology · L4 · Conservation Biology
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Biology · L4 · Conservation BiologyCollection4 items
01Biology · L4 · Digestive Enzymes, Motility, and Regulation
02Biology · L4 · Digestive Physiology Quiz
03Digestive Physiology
+1 moreBiology · L4 · Digestive Physiology
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Biology · L4 · Digestive PhysiologyCollection4 items
01Biology · L4 · DNA Damage and Repair Pathways
02Biology · L4 · DNA Repair Mechanisms Quiz
03DNA Repair Mechanisms
+1 moreBiology · L4 · DNA Repair Mechanisms
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Biology · L4 · DNA Repair MechanismsCollection6 items
01Biology · L4 · Enzyme Kinetics and Allosteric Regulation
02Biology · L4 · Enzyme Regulation and Allostery Quiz
03Enzyme Regulation and Allostery
+3 moreBiology · L4 · Enzyme Regulation and Allostery
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Biology · L4 · Enzyme Regulation and AllosteryCollection6 items
01Biology · L4 · Hemoglobin, Gas Transport, and Hemostasis
02Biology · L4 · Hematology and Blood Physiology Quiz
03Hematology and Blood Physiology
+3 moreBiology · L4 · Hematology and Blood Physiology
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Biology · L4 · Hematology and Blood PhysiologyCollection4 items
01Biology · L4 · Human Microbiome Composition and Function
02Biology · L4 · Human Microbiome Quiz
03The Human Microbiome
+1 moreBiology · L4 · Human Microbiome
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Biology · L4 · Human MicrobiomeCollection4 items
01Biology · L4 · Photosynthesis: Light Reactions and Rubisco
02Biology · L4 · Photosynthesis (C3, C4, CAM) Quiz
03Photosynthesis: C3, C4, and CAM Strategies
+1 moreBiology · L4 · Photosynthesis: C3, C4, and CAM
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Biology · L4 · Photosynthesis: C3, C4, and CAMCollection4 items
01Biology · L4 · Reading and Building Phylogenetic Trees
02Biology · L4 · Phylogenetics and Cladistics Quiz
03Phylogenetics and Cladistics
+1 moreBiology · L4 · Phylogenetics and Cladistics
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Biology · L4 · Phylogenetics and CladisticsCollection5 items
01Biology · L4 · Plant Hormones
02Biology · L4 · Tropisms and Photoperiodism
03Biology · L4 · Plant Hormones and Tropisms Quiz
+2 moreBiology · L4 · Plant Hormones and Tropisms
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Biology · L4 · Plant Hormones and TropismsCollection3 items
01Biology · L4 · Reproductive Endocrinology and Gametogenesis
02Biology · L4 · Reproductive Physiology Quiz
03Reproductive Physiology
Biology · L4 · Reproductive Physiology
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Biology · L4 · Reproductive PhysiologyCollection4 items
01Biology · L4 · Modes of Speciation
02Biology · L4 · Reproductive Isolation and Species Boundaries
03Biology · L4 · Speciation Mechanisms Quiz
+1 moreBiology · L4 · Speciation Mechanisms
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Biology · L4 · Speciation MechanismsCollection4 items
01Biology · L4 · Thermoregulation Mechanisms
02Biology · L4 · Osmoregulation and Excretion
03Biology · L4 · Thermoregulation and Osmoregulation Quiz
+1 moreBiology · L4 · Thermoregulation and Osmoregulation
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Biology · L4 · Thermoregulation and Osmoregulation