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- Chemistry
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    - States of Matter 202
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    - Solutions 10
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    - Electrochemistry 12
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    - Periodic Table 231
    - Chemical Bonding 112
    - Coordination Compounds 23
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    - s Block Elements 1
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    - Hydrogen 8
    - Halogens 10
    - Noble Gases 5
    - Acids and Bases 74
    - Salt Analysis 28
  - Organic Chemistry
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    - Structural Isomerism 13
    - Nomenclature 83
    - Hydrocarbons 6
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    - Alcohols 10
    - Aldehydes 3
    - Ketones 4
    - Carboxylic Acids 9
    - Amines 3
    - Organic Biomolecules 17
    - Organic Reactions 15
  - Analytical Chemistry
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    - Titrations 3
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    - Chromatography 5
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    - Electroanalytical Methods 10
    - Mass Spectrometry 5
    - Thermal Analysis 2
    - Separation Techniques 24
  - Biochemistry
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    - Proteins 31
    - Enzymes 24
    - Lipids 49
    - Nucleic Acids 8
    - Metabolism 4
    - Bioenergetics 1
    - Vitamins 35
    - Hormones 17
    - Cell Signaling 16
    - Genetic Code 4
  - Environmental Chemistry
    - Air Pollution 18
    - Water Pollution 20
    - Soil Pollution 4
    - Waste Management 54
    - Ozone Depletion 9
    - Acid Rain 8
    - Eutrophication 2
    - Toxicology 52
    - Radioactive Pollution 3
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    - Food Chemistry 13
    - Pulp and Paper 2
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  - Nuclear Chemistry
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  - Polymer Chemistry
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    - Polymer Properties 1
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  - Theoretical Chemistry
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    - Statistical Mechanics 12
    - Chemical Thermodynamics 13
    - Reaction Dynamics 125
    - Electronic Structure 57
    - Molecular Dynamics 18
    - Spectroscopy Theory 1
  - Medicinal Chemistry
    - Drug Design 4
    - Pharmacokinetics 42
    - Pharmacodynamics 19
    - Drug Metabolism 7
    - Enzyme Inhibition 26
    - Receptor Binding 12
    - Structure Activity 11
    - Prodrugs 5
    - Natural Products 19
    - Peptidomimetics 4
  - Green Chemistry
    - Principles 8
    - Sustainable Design 1
    - Waste Prevention 8
    - Energy Efficiency 13
    - Catalysis 1
    - Biodegradable Materials 1
    - Green Synthesis 1
    - Solvent Reduction 10
    - Atom Economy 2
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  - Materials Chemistry
    - Crystal Structure 51
    - Band Theory 7
    - Materials Polymers 2
    - Ceramics 5
    - Composites 2
    - Nanomaterials 9
    - Biomaterials 3
    - Corrosion 28
    - Alloys 11
    - Superconductors 1
    - Thin Films 1
    - Magnetic Materials 4
    - Optical Materials 4
- Biology
  - Cell Biology
    - Cell Theory 100
    - Prokaryotic Cells 17
    - Eukaryotic Cells 26
    - Cell Organelles 63
    - Cell Membrane 70
    - Cell Wall 2
    - Cytoplasm 14
    - Nucleus 12
    - Mitochondria 16
    - Chloroplasts 15
    - Ribosomes 13
    - Endoplasmic Reticulum 2
    - Golgi Apparatus 15
    - Lysosomes 6
    - Cytoskeleton 12
    - Cell Division 113
    - Cell Cycle 37
    - Transport Mechanisms 93
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  - Genetics
    - DNA Structure 95
    - RNA Structure 38
    - Gene Expression 15
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    - Transcription 8
    - Translation 4
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    - Mendelian Inheritance 38
    - Non Mendelian Inheritance 87
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    - Epigenetics 5
  - Evolution
    - Origin of Life 47
    - Theories of Evolution 13
    - Natural Selection 42
    - Variation 27
    - Adaptation 23
    - Speciation 9
    - Fossil Record 12
    - Comparative Anatomy 31
    - Molecular Evidence 44
    - Human Evolution 22
    - Coevolution 6
    - Extinction 12
  - Ecology
    - Ecosystem 53
    - Biomes 10
    - Population Ecology 30
    - Community Ecology 10
    - Food Chains 98
    - Food Webs 45
    - Ecological Energy Flow 24
    - Nutrient Cycles 57
    - Biodiversity 183
    - Ecological Conservation 95
    - Habitat 119
    - Succession 24
    - Ecological Adaptation 38
    - Human Impact 37
    - Ecological Climate Change 16
  - Human Anatomy and Physiology
    - Skeletal System 252
    - Muscular System 161
    - Nervous System 340
    - Endocrine System 186
    - Circulatory System 207
    - Respiratory System 177
    - Digestive System 128
    - Excretory System 73
    - Reproductive System 139
    - Immune System 99
    - Integumentary System 51
    - Sensory Organs 213
  - Botany Plant Biology
    - Plant Anatomy 5
    - Plant Morphology 119
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    - Photosynthesis 104
    - Plant Reproduction 32
    - Plant Growth 9
    - Plant Hormones 28
    - Plant Taxonomy 93
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    - Plant Pathology 12
    - Economic Botany 49
    - Seed Biology 6
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  - Zoology Animal Biology
    - Classification 267
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    - Platyhelminthes 34
    - Nematoda 17
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    - Mollusca 16
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    - Chordata 13
    - Fish 27
    - Amphibians 28
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    - Mammals 38
    - Anatomy 30
    - Physiology 29
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    - Stem Cells 9
    - Bioreactors 5
    - Fermentation 5
    - Bioinformatics 6
    - GMOs 12
    - Proteomics 1
    - Metabolomics 3
  - Molecular Biology
    - Biological Biomolecules 17
    - Carbohydrates 29
    - Biochemical Lipids 2
    - Bio Proteins 12
    - Bio Enzymes 3
    - Bio Nucleic Acids 21
    - Biochemical Vitamins 36
    - Bio Minerals 5
    - Bio Metabolism 47
    - Cellular Respiration 112
    - Nitrogen Metabolism 9
    - Bio Hormones 13
    - Signal Transduction 6
  - Immunology
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    - Lymphatic System 26
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    - Cytokines 16
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    - Hypersensitivity 30
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  - Developmental Biology
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    - Cleavage 20
    - Gastrulation 5
    - Organogenesis 25
    - Metamorphosis 15
    - Regeneration 3
    - Growth 19
    - Aging 30
- Earth and Space Science
  - Geology
    - Minerals 52
    - Rocks 18
    - Geological Rock Cycle 45
    - Plate Tectonics 107
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    - Geological Earthquakes 22
    - Weathering 14
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    - Soil 8
    - Fossils 8
    - Geological Time 23
    - Geomorphology 10
    - Natural Resources 28
  - Meteorology
    - Metrological Atmosphere 12
    - Metrological Weather 52
    - Climate 5
    - Clouds 14
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    - Wind 4
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    - Ocean Basins 21
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    - Marine Life 30
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  - Natural Disasters
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  - Earth Systems and Cycles
    - Geosphere 4
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    - Energy Flow 5
    - Climate System 3
  - Soil Science
    - Soil Formation 3
    - Soil Profile 16
    - Soil Properties 4
    - Soil Fertility 14
    - Soil Physics 1
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    - Soil Erosion 4
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- Astronomy
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    - History of Astronomy 17
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  - Solar System
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    - Jupiter 2
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    - Asteroids 14
    - Comets 10
    - Meteoroids 5
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  - Galaxies
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  - Cosmology
    - Big Bang 22
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    - Dark Energy 1
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    - Universe Expansion 2
    - Cosmological Models 4
  - Exoplanets
    - Detection Methods 1
    - Planet Types 6
    - Atmospheres 1
  - Astrobiology
    - Extremophiles 1
    - Habitable Zones 1
    - Biosignatures 4
    - Life Detection 2
    - Mars Life 3
    - Space Missions 5
  - Astronomical Instruments
    - Radio Telescope 2
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    - Planetarium 1
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  - Space Exploration and Missions
    - Spacecraft 3
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    - Space Probes 3
    - Space Telescopes 1
    - Manned Missions 2
    - Lunar Missions 6
    - Mars Missions 2
    - Space Stations 3
    - Space Agencies 3
  - Celestial Mechanics and Orbits
    - Orbital Motion 7
    - Kepler Laws 3
    - Newton Laws 60
    - Orbital Gravity 1
    - Eclipses 7
    - Retrograde Motion 3
    - Perturbations 5
    - Orbital Resonance 5
Math

9th Grade Endocrine System Quizzes, Questions & Answers

Spark curiosity and test your child’s 9th grade Endocrine System knowledge with our engaging quizzes! Read More

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Periodic Table Nervous System Sociology Dna Structure Classification Photosynthesis Chemical Bonding Non Mendelian Inheritance Biodiversity Forces Law Plate Tectonics Food Chains Geography Poetry

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Bio IB Topic 6.5-6

Explore key concepts in neurobiology and endocrinology with this focused quiz. Topics include nerve impulse transmission, hormone regulation, and cellular functions in humans. Ideal for students preparing for IB or advanced...

Questions: 10 | Attempts: 345 | Last updated: Mar 21, 2023

Sample Question
Which structure is responsible for passing messages directly to effector organs?

A.

B.

C.

D.

Organ Integumentary System Quiz

The body integumentary system consists of the skin, hair, nails and the endocrine system. How well do you understand this system and its constituent organs? The quiz below holds the answer to this question. All the best.

Questions: 15 | Attempts: 1319 | Last updated: May 20, 2025

Sample Question
Dead Keratinocytes are contained in which of the following strata of skin?

Statum spinosa

Stratum basale

Stratum corneum

Stratum granulosom

Aromatherapy Essential Oils For Hormones! Trivia Quiz

A lot has been said about the role that aromatherapy essential oils play when it comes to hormones, and at as far as most people are concerned there is little to no evidence that these oils are estrogenic, or that essential oils...

Questions: 10 | Attempts: 247 | Last updated: Mar 11, 2025

Sample Question
The active principle of the secretion of an endocrine gland is called Hormone, and some glands produce a single hormone, whereas others produce two or more.

True

False

Biology Midterm Practice Test

The Biology Midterm Practice Test explores the physiological responses of Daphnia to temperature changes, cell theory in relation to viruses, cellular structures distinguishing bacteria, and hormonal regulation in human...

Questions: 41 | Attempts: 436 | Last updated: Mar 20, 2023

Sample Question
Mrs. Lewis set up a lab for her biology students using a culture of the small crustacean Daphnia, obtained from a pond that was 20°C. The students are to investigate the effect temperature has on Daphnia. The students will observe the crustacean’s heartbeat under the microscope, at the following temperatures: 0°C, 10°C, 20°C, 30°C, and 40°C. They will count the number of heartbeats per second. If the experiment is designed correctly, what will the students choose for the experimental treatment?

Placing 5 identical cultures of Daphnia at 20C

Placing each of 5 identical cultures of Daphnia at a different temperature

Placing 5 cultures, each with a different type of crustacean, at 20C

Placing 5 cultures, each with a different type of crustacean, at a different temperature

General Plan 1- Human Structure And Function

General Plan 1- Human Structure and Function quiz explores the basics of anatomy, physiology, pathology, and the chemical foundations of life. It assesses understanding of body functions, internal balance, and the impact of...

Questions: 64 | Attempts: 65 | Last updated: May 18, 2023

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Biology Revision 1 Solution

A list of questions and answers extracted from 'O' level questions on the topics: Human Nutrition,Transport, Respiration, Co-ordination( Eye and hormones)

Questions: 10 | Attempts: 2361 | Last updated: Sep 1, 2023

Regulating The Internal Environment

Regulating the Internal Environment

To all the current biology students out there who are close to their exams and need practice, take this quiz. It is specifically designed to help you gauge your knowledge on internal environment regulation and more.

Questions: 10 | Attempts: 873 | Last updated: Mar 22, 2023

Sample Question
Contractile vacuoles most likely would be found in protists

In a freshwater environment.

In a marine environment.

That are internal parasites.

That are hypoosmotic to their environment.

That are isoosmotic to their environment.