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- Chemistry
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  - Polymer Chemistry
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  - Theoretical Chemistry
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    - Reaction Dynamics 81
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  - Medicinal Chemistry
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  - Green Chemistry
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  - Materials Chemistry
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    - Composites 8
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- Biology
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  - Genetics
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  - Evolution
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    - Variation 5
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    - Fossil Record 5
    - Comparative Anatomy 12
    - Molecular Evidence 8
    - Human Evolution 5
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  - Ecology
    - Ecosystem 36
    - Biomes 25
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    - Food Chains 16
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    - Ecological Energy Flow 5
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    - Biodiversity 28
    - Ecological Conservation 47
    - Habitat 5
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    - 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
    - Economic Botany 5
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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
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  - Immunology
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  - Developmental Biology
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- Earth & Space Science
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    - Soil 5
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  - Oceanography
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- Astronomy
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Exams & Certifications

Biology Quizzes, Questions & Answers

Recent Biology Quizzes

World Scholar's Cup Science Quiz

Questions: 35 | Attempts: 8216 | Last updated: Mar 18, 2025

Sample Question
What is the phenomenon parallax?

It refers to the idea that the Universe has expanded from a primordial hot and dense initial condition at some finite time in the past.

It is a climate pattern that occurs across the tropical Pacific Ocean on average every five years

It is the result of the emissions of photons in the Earth's upper atmosphere

It is the study of the chemical elements that are necessary for plant growth.

None of the above

Minerals In The Body Quiz

Questions: 26 | Attempts: 698 | Last updated: Mar 20, 2025

Sample Question
Calcium is a:

Intracellular mineral

Extracellular mineral

Can be both

USMLE Step 1 Qs (5)

Questions: 50 | Attempts: 246 | Last updated: Mar 21, 2025

Sample Question
. A 55-year-old woman presents with pain in her right hip and thigh. The pain started approximately six months ago and is a deep ache that worsens when she stands or walks. Your examination reveals increased warmth over the right thigh. The only laboratory abnormalities are alkaline phosphatase 656 IU/L (normal 23 to 110 IU/L), elevated 24-h urine hydroxyproline, and osteocalcin 13 ng/mL (normal 6 ng/mL). X-ray of hips and pelvis shows osteolytic lesions and regions with excessive osteoblastic activity. Bone scan shows significant uptake in the right proximal femur. Which of the following should you include in your differential diagnosis?

Paget's disease

Multiple myeloma

Osteomalacia

Osteoporosis

Hypoparathyroidism

Principles Of Biology Chapter 2 and 3

Questions: 44 | Attempts: 1256 | Last updated: Mar 22, 2025

Sample Question
What charge does the subatomic particle proton have?

No charge

(+) positive

(-) negative

Human Body Unit Post-assessment (Grade 7)

Questions: 12 | Attempts: 1193 | Last updated: Sep 7, 2025

Sample Question
The diagrams below illustrate the pathway and time frame for the digestion of a hamburger consisting of ground beef, ketchup, and a whole wheat bun. During which time period does most of the digestive action of bile and pancreatic juice occur? (Standard 1.2b)

6:03 p.m.-6:05 p.m.

6:05 p.m.-6:08 p.m.

10:15 p.m.-9:50 a.m.

9:50 a.m.-1:00 p.m.

1:00 p.m.-1:05 p.m.

Nutrition - Chapter 7 - Vitamins

Questions: 95 | Attempts: 1606 | Last updated: Mar 21, 2025

Sample Question
Vitamin A can also be known as-(select all that apply)

Retinol

Tocopherol

Provitamin A

Beta-carotene

Calciferol

Trivia Quiz: Concepts and Principles Of Biology

Questions: 20 | Attempts: 1926 | Last updated: Mar 21, 2025

Sample Question
What is the definition of a biosphere?

The global ecosystem.

All organisms in a given area.

An organisms genetic material.

The scientific study of how organisms interact with their environment.

Biology: The Study Of Life

Questions: 9 | Attempts: 177 | Last updated: Jul 22, 2025

Sample Question
The three criteria that are used to determine your overall result in Biology are:

Understanding Biology, Researching Biology, and Investigating and Concluding

Conceptual Understanding, Investigating and Concluding, and Analysing Biological Issues

Knowledge and Conceptual Understanding, Investigative Processes, and Evaluating and Concluding

Understanding Biology, Investigating Biology, and Evaluating Biological Issues

Disease & Its Impact On Humans

Questions: 30 | Attempts: 114 | Last updated: Mar 14, 2025

Sample Question
Diseases may be classified as being

Hereditary

Pathogenic

Physiological

Deficiency

All of the above

Unit A: Continuity Of Life

Questions: 14 | Attempts: 396 | Last updated: Mar 21, 2025

Sample Question
A particular multicellular organism neither makes nor eats food. This organism is classified in which kingdom?

Animalia

Fungi

Plantae

Protista

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