TEAS 7 Science Questions and Answers
| Latest Version | 2024/2025 | Correct &
Verified
What tiny hair-like structures in the lungs help sweep out mucus and debris?
✔✔ Cilia
Which element makes up most of the air we breathe but is not used by our bodies?
✔✔ Nitrogen
What part of the body has more bacteria than human cells?
✔✔ The gut
Which human organ can completely regenerate even if a portion of it is removed?
✔✔ The liver
What small but powerful structure in the ear helps us keep our balance?
✔✔ The vestibular system
1
,Which chemical in spicy foods tricks our brain into thinking we’re experiencing heat?
✔✔ Capsaicin
What type of blood can be donated to any person, making it the universal donor?
✔✔ O negative
Which organ expands and contracts around 20,000 times a day without us thinking about it?
✔✔ The lungs
What tiny structures in the kidneys act as filters to remove waste from blood?
✔✔ Nephrons
Which part of the eye changes shape to focus light onto the retina?
✔✔ The lens
What is the only human body part that does not require blood to function?
✔✔ The cornea
2
, Which part of the body contains the most bones?
✔✔ The hands
What powerful acid helps break down food in the stomach?
✔✔ Hydrochloric acid
Which cells in the body are responsible for sending electrical signals to control movement?
✔✔ Neurons
What part of the body produces its own natural antibiotics to fight infections?
✔✔ The skin
Which molecule in the body acts like a rechargeable battery for cells?
✔✔ ATP (Adenosine triphosphate)
What is the only muscle in the human body that never rests?
✔✔ The heart
3
| Latest Version | 2024/2025 | Correct &
Verified
What tiny hair-like structures in the lungs help sweep out mucus and debris?
✔✔ Cilia
Which element makes up most of the air we breathe but is not used by our bodies?
✔✔ Nitrogen
What part of the body has more bacteria than human cells?
✔✔ The gut
Which human organ can completely regenerate even if a portion of it is removed?
✔✔ The liver
What small but powerful structure in the ear helps us keep our balance?
✔✔ The vestibular system
1
,Which chemical in spicy foods tricks our brain into thinking we’re experiencing heat?
✔✔ Capsaicin
What type of blood can be donated to any person, making it the universal donor?
✔✔ O negative
Which organ expands and contracts around 20,000 times a day without us thinking about it?
✔✔ The lungs
What tiny structures in the kidneys act as filters to remove waste from blood?
✔✔ Nephrons
Which part of the eye changes shape to focus light onto the retina?
✔✔ The lens
What is the only human body part that does not require blood to function?
✔✔ The cornea
2
, Which part of the body contains the most bones?
✔✔ The hands
What powerful acid helps break down food in the stomach?
✔✔ Hydrochloric acid
Which cells in the body are responsible for sending electrical signals to control movement?
✔✔ Neurons
What part of the body produces its own natural antibiotics to fight infections?
✔✔ The skin
Which molecule in the body acts like a rechargeable battery for cells?
✔✔ ATP (Adenosine triphosphate)
What is the only muscle in the human body that never rests?
✔✔ The heart
3
