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- Chemistry
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    - Hydrogen 8
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  - Organic Chemistry
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  - Analytical Chemistry
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  - Industrial Chemistry
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  - Nuclear Chemistry
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  - Polymer Chemistry
    - Polymerization 1
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  - Theoretical Chemistry
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    - Statistical Mechanics 12
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    - Reaction Dynamics 125
    - Electronic Structure 57
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  - Medicinal Chemistry
    - Drug Design 4
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    - Enzyme Inhibition 26
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  - Green Chemistry
    - Principles 8
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    - Catalysis 1
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    - Solvent Reduction 10
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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
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    - Thin Films 1
    - Magnetic Materials 4
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- Biology
  - Cell Biology
    - Cell Theory 100
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    - Cell Organelles 63
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    - Cell Wall 2
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    - Ribosomes 13
    - Endoplasmic Reticulum 2
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    - Cell Division 113
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  - Genetics
    - DNA Structure 95
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  - Evolution
    - Origin of Life 47
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    - Succession 24
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  - Human Anatomy and Physiology
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    - Endocrine System 186
    - Circulatory System 207
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  - Botany Plant Biology
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    - Plant Taxonomy 93
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    - Seed Biology 6
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  - Zoology Animal Biology
    - Classification 267
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    - Cnidaria 21
    - Platyhelminthes 34
    - Nematoda 17
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    - Mollusca 16
    - Echinodermata 19
    - Chordata 13
    - Fish 27
    - Amphibians 28
    - Reptiles 41
    - Birds 61
    - Mammals 38
    - Anatomy 30
    - Physiology 29
    - Reproduction 40
    - Development 16
    - Behavior 170
  - Microbiology
    - Microbial Structure 58
    - Bacteriology 7
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    - Mycology 23
    - Parasitology 45
    - Microbial Genetics 2
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  - Biotechnology
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    - Bioreactors 5
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    - Bioinformatics 6
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    - Proteomics 1
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  - Molecular Biology
    - Biological Biomolecules 17
    - Carbohydrates 29
    - Biochemical Lipids 2
    - Bio Proteins 12
    - Bio Enzymes 3
    - Bio Nucleic Acids 21
    - Biochemical Vitamins 36
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    - Cellular Respiration 112
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  - Immunology
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  - Developmental Biology
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- Earth and Space Science
  - Geology
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  - Meteorology
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  - Oceanography
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  - Earth Systems and Cycles
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  - Soil Science
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- Astronomy
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  - Cosmology
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  - Exoplanets
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    - Atmospheres 1
  - Astrobiology
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  - Celestial Mechanics and Orbits
    - Orbital Motion 7
    - Kepler Laws 3
    - Newton Laws 60
    - Orbital Gravity 1
    - Eclipses 7
    - Retrograde Motion 3
    - Perturbations 5
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Math

Classification Quizzes, Questions & Answers

Recent Classification Quizzes

Can You Identify The Monkey Species Quiz

Do you know monkeys like the back of your hand? Perhaps you have an incoming test, or you just want to show off your monkey knowledge to your friends and family, you might consider taking this fun-filled test, which analyzes your...

Questions: 10 | Attempts: 1054 | Last updated: Mar 20, 2023

Sample Question
Which is a type of monkey?

Old world

New World

A and B

None of the above

Reindeer Quiz: Amazing Facts Trivia!

Dive into the fascinating world of reindeer with our 'Reindeer Quiz: Amazing Facts Trivia!' Explore unique characteristics, global distribution, and biological aspects through engaging questions. Perfect for learners interested...

Questions: 10 | Attempts: 310 | Last updated: Mar 20, 2023

Sample Question
What is it called in North America?

Kaolo

Caribou

Baskil

Manattee

Theory: Evidence-based Dog Training

Theory: Evidence-based dog training

Explore the principles of evidence-based dog training in this quiz. Learn to critically evaluate claims, identify reliable sources, and understand why certain methods are advised over others. Essential for enhancing training...

Questions: 28 | Attempts: 114 | Last updated: Mar 17, 2023

Sample Question
OhMyDog stands for Evidence-based, Least Invasive Method Available, and Great client experience. What does 'Evidence-based' mean?

We only advise methods that have been formally researched and published in the scientific peer-reviewed literature.

We believe that there are always two sides to a story, and evaluate every dog behaviour claim with an open mind.

No bullshit: no argument to ideology, tradition, or authority We can defend our choice of exercise/advice with critical thinking, sound logic and reliable sources of information.

Identification - Dichotomous Keys

This quiz titled 'Identification - Dichotomous Keys' assesses the ability to use dichotomous keys for identifying different biological specimens like fish, leaves, and insects. It enhances skills in observing distinct traits to...

Questions: 7 | Attempts: 6242 | Last updated: Nov 7, 2023

Sample Question
An illustration of two fish is provided. Which paired statements could be used to know the difference between the fish using a dichotomous key?

Eyes on side of head. Eyes on top of head.

One set of dorsal fins. Two sets of dorsal fins

Mouth at front of head. Mouth on underside of head.

Rounded caudal fin. Forked caudal fin.

Biology Unit 1 Practice Test

Are you a pro in Biology? You can take this Biology Unit 1 practice test to check your knowledge. Biology is a vast subject with a lot of topics, terms, fundamentals, and explanations. Here, we have got a few questions for your...

Questions: 50 | Attempts: 10610 | Last updated: Sep 9, 2024

What Do You Know About Shire?

What do you know about Shire?

In other words, what do you know about the Shire horse? They are a British breed of Draught Horses and they usually take one of the three coat colours bay, brown, and black. The Shire breed usually sets the records for World...

Questions: 10 | Attempts: 175 | Last updated: Mar 21, 2023

Sample Question
How would you rate their average weight?

900 Kg

700 Kg

550 Kg

250 Kg

What Is IT That Interests People In Zoology?

What is it that interests people in Zoology?

I don't know about you but I'm curious about what interests people in Zoology. I think all they do is look at animals and know the classification, type, model, etcetera.

Questions: 10 | Attempts: 916 | Last updated: Mar 20, 2023

Sample Question
Which one represents Zoo in the following?

None actually

Zōion

Logos

Animeal

How Well Do You Know Pygmy Three-toed Sloth?

How well do you know Pygmy Three-Toed Sloth?

Get ready to play this fun sloth quiz that is designed to test your knowledge of this animal. The Pygmy Three-Toed Sloth is one of the four species of the animal Sloth which was first described in the 20th century. How good do...

Questions: 10 | Attempts: 220 | Last updated: Nov 16, 2023

Sample Question
What is the Pygmy Three-Toed Sloth also known to be ?

Small Sloth

Slim Sloth

Slow Sloth

Monk Sloth

What Do You Know About Animals And Their Eyes?

What do you know about animals and their eyes?

Just like humans, other animals also have eyes that are mostly intriguing and interesting. Take this quiz to discover more about animals and their respective eyes.

Questions: 10 | Attempts: 163 | Last updated: Mar 22, 2023

Sample Question
Which of these animals has the sharpest eyesight?

Eagle

Owls

Parrot

Crow

What Do You Know About Rabbits?

What do you know about rabbits?

Rabbits are small, adorable, and beautiful mammals known throughout the world with many breeds. Quiz yourself on rabbits, rabbit breeds, rabbit facts, and many more.

Questions: 10 | Attempts: 1537 | Last updated: Sep 11, 2023

Sample Question
How long do rabbits live?

4-6 years

9-12 years

10-15 years

7-10 years

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