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Logic and Human Biology

Biology

A series of logical questions based on factual human anatomy and health.

health anatomy science

15 Questions Easy Ages 5+ Jul 29, 2026

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About this Study Set

This study set covers Biology through 15 practice questions. A series of logical questions based on factual human anatomy and health. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 15 questions from the Logic and Human Biology study set below. Each question shows the correct answer — select a study format above to practice interactively.

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

A Lungs
B Heart
C Liver
D Stomach

2 How many primary chambers does a human heart have?

A One
B Two
C Three
D Four

3 Which part of the human body is primarily used for breathing?

A Lungs
B Kidneys
C Intestines
D Skin

4 Which mineral is essential for maintaining strong bones and teeth?

A Iron
B Calcium
C Sodium
D Potassium

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

A Brain
B Liver
C Skin
D Heart

6 Which human body system is responsible for protecting against diseases and infections?

A Digestive system
B Immune system
C Skeletal system
D Muscular system

7 Which human organ is primarily responsible for filtering waste from the blood?

A Kidneys
B Heart
C Pancreas
D Gallbladder

8 What type of cells in the blood carry oxygen throughout the body?

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

9 Which bone protects the human brain?

A Femur
B Skull
C Ribcage
D Pelvis

10 What is the main function of the human digestive system?

A Circulation
B Processing nutrients
C Hormone production
D Respiration

11 Which sense organ is primarily used for detecting light and images?

A Ears
B Nose
C Tongue
D Eyes

12 What is the approximate number of teeth in a healthy adult human mouth including wisdom teeth?

A 20
B 24
C 32
D 40

13 Which human organ produces insulin to help regulate blood sugar levels?

A Pancreas
B Brain
C Lungs
D Bladder

14 What is the hardest substance found in the human body?

A Bone marrow
B Tooth enamel
C Cartilage
D Ligaments

15 Which part of the brain is responsible for balance and coordination?

A Cerebrum
B Cerebellum
C Brain stem
D Thalamus

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