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Foundations of Human Biology

Human Biology

A collection of essential facts covering human anatomy and physiological systems.

anatomy biology science

12 Questions Easy Ages 5+ Sep 12, 2026

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About this Study Set

This study set covers Human Biology through 12 practice questions. A collection of essential facts covering human anatomy and physiological systems. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 12 questions from the Foundations of Human Biology study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which organ is primarily responsible for pumping blood throughout the human body?

A Lungs
B Heart
C Liver
D Kidneys

2 How many chambers are there in a standard human heart?

A Two
B Three
C Four
D Five

3 Which part of the human skeleton protects the brain?

A Rib cage
B Pelvis
C Femur
D Skull

4 What is the largest organ in the human body by surface area?

A Liver
B Lungs
C Skin
D Small intestine

5 Which blood cells are responsible for carrying oxygen to tissues?

A Red blood cells
B White blood cells
C Platelets
D Plasma

6 What gas do humans primarily exhale as a waste product of respiration?

A Oxygen
B Nitrogen
C Carbon dioxide
D Hydrogen

7 Which part of the digestive system absorbs the most nutrients?

A Stomach
B Esophagus
C Small intestine
D Large intestine

8 What is the hardest substance in the human body?

A Bone
B Tooth enamel
C Cartilage
D Ligament

9 Which sense organ is responsible for detecting sound vibrations?

A Eye
B Nose
C Ear
D Tongue

10 What is the main structural protein found in human hair and nails?

A Keratin
B Collagen
C Hemoglobin
D Insulin

11 In which organ does the process of filtration occur to produce urine?

A Liver
B Kidney
C Pancreas
D Gallbladder

12 What is the total number of bones in a typical adult human skeleton?

A 106
B 206
C 306
D 406

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