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  - Theoretical Chemistry
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    - Reaction Dynamics 81
    - Electronic Structure 100
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  - Green Chemistry
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  - Materials Chemistry
    - Crystal Structure 6
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    - Composites 8
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- Biology
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  - Genetics
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  - Evolution
    - Origin of Life 9
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    - Comparative Anatomy 12
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  - Ecology
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    - Biodiversity 28
    - Ecological Conservation 47
    - Habitat 5
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    - Ecological Adaptation 11
    - Human Impact 5
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  - Human Anatomy & Physiology
    - Skeletal System 117
    - Muscular System 70
    - Nervous System 124
    - Endocrine System 78
    - Circulatory System 90
    - Respiratory System 44
    - Digestive System 47
    - Excretory System 10
    - Reproductive System 120
    - Immune System 11
    - Integumentary System 21
    - Sensory Organs 56
  - Botany Plant Biology
    - Plant Anatomy 38
    - Plant Morphology 5
    - Plant Physiology 68
    - Photosynthesis 53
    - Plant Reproduction 22
    - Plant Growth 5
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    - Plant Taxonomy 43
    - Plant Ecology 19
    - Plant Pathology 6
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  - Zoology Animal Biology
    - Classification 38
    - Porifera 6
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    - Platyhelminthes 5
    - Nematoda 6
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    - Arthropoda 12
    - Mollusca 5
    - Echinodermata 6
    - Chordata 5
    - Fish 76
    - Amphibians 10
    - Reptiles 14
    - Birds 5
    - Mammals 106
    - Anatomy 2
    - Physiology 27
    - Reproduction 26
    - Development 6
    - Behavior 63
  - Microbiology
    - Microbial Structure 5
    - Bacteriology 33
    - Virology 34
    - Mycology 16
    - Parasitology 59
    - Microbial Genetics 5
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  - Biotechnology
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    - Bioinformatics 6
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  - Molecular Biology
    - Biological Biomolecules 8
    - Carbohydrates 6
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    - Bio Enzymes 21
    - Bio Nucleic Acids 5
    - Biochemical Vitamins 5
    - Bio Minerals 6
    - Bio Metabolism 60
    - Cellular Respiration 22
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- Earth & Space Science
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Biology Quizzes, Questions & Answers

Recent Biology Quizzes

Nutrition and Wellness Carbohydrate Vocabulary Quiz

Questions: 20 | Attempts: 515 | Last updated: Mar 21, 2025

Sample Question
One of the six classes of nutrients that includes sugars, starches and fiber. The body's main source of energy

Carbohydrates

Proteins

Fats

Vitamins

Step-by-step Scientific Method Quiz

Questions: 11 | Attempts: 1333 | Last updated: Mar 21, 2025

Sample Question
Identify the quantitative observation.

The desk is 1.5 meters long.

The desks are rectangular.

Observations, Inferences, And Lab Report Quiz

Questions: 11 | Attempts: 182 | Last updated: Sep 5, 2025

Sample Question
In which section of the lab report do you take an educated guess of what will happen during the experiment? This section is completed before the experiment is conducted.

Method

Hypothesis

Background Information

Conclusion

General Biology I- Exam 2

Questions: 91 | Attempts: 968 | Last updated: Sep 5, 2025

Sample Question
Organisms are made up of chemicals that are based mostly on the element _________________.

Carbon

Hydrogen

Oxygen

Nitrogen

The Challenging Biology Quiz 2

Questions: 21 | Attempts: 838 | Last updated: Mar 21, 2025

Sample Question
A Carbohydrate consists of

Amino acid units

One or more sugar units

Lipid droplets

Glycerol

Bio Quiz--introduction To Life

Questions: 10 | Attempts: 98 | Last updated: Oct 5, 2025

Sample Question
Which of the following is NOT a principle of the cell theory?

Cells are the basic units of life.

All living things are made of cells.

Very few cells reproduce.

All cells come from existing cells.

Re-test-scientific Method & Metric System

Questions: 25 | Attempts: 235 | Last updated: Mar 21, 2025

Sample Question
A series of logical steps that is followed in order to solve a problem is called the __________

Scientific method

Experimental Process

Scientific Theory

Model Method

Stem Ch 1 Online Test

Questions: 19 | Attempts: 243 | Last updated: Mar 20, 2025

Sample Question
What is a hypothesis?

A theory

An educated guess

A Fact

An inference

An observation

Association Of Surgical Tech

Questions: 95 | Attempts: 1085 | Last updated: Mar 22, 2025

Sample Question
Which of the following structures is located in the alveolar processes?

Teeth

Villi

Sinuses

Tonsils

Unit 1 Target 8-experimental Design Quiz

Questions: 10 | Attempts: 1753 | Last updated: Mar 20, 2025

Sample Question
Aisha wants to conduct an experiment to determine whether sun and shade varieties of the same plant species prefer the same wavelengths of light. She plans to measure rates of photosynthesis. Which design would be best for her experiment.

1 plant of the sun variety tested under blue light only, and 1 plant of the shade variety tested under blue light only

4 plants of the sun variety: 1 tested under blue light, 1 under green, 1 under red, and 1 under yellow light with 4 plants of the shade variety: 1 tested under blue light, 1 under green, 1 under red, and 1 under yellow light

10 plants of the sun variety tested under blue light only; and 10 plants of the shade variety tested under blue light only

40 plants of the sun variety: 10 tested under blue light, 10 under green, 10 under red, and 10 under yellow light with 40 plants of the shade variety: 10 tested under blue light, 10 under green, 10 under red, and 10 under yellow light

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