Science
Circulatory System
Grade 8 · Middle School
Answer every question first, then press Finish to see your score and explanations.
- Question 1 of 20Easy
The organ that pumps blood throughout the body is the ...
- Question 2 of 20Easy
The blood vessel that carries blood away from the heart is the ...
- Question 3 of 20Easy
The part of the heart with the thickest wall because it pumps blood throughout the body is the ...
- Question 4 of 20Easy
Red blood cells can carry oxygen because they contain ...
- Question 5 of 20Easy
The liquid part of blood that carries nutrients is ...
- Question 6 of 20Easy
Platelets play a role in ...
- Question 7 of 20Medium
The correct order of pulmonary circulation is ...
- Question 8 of 20Medium
Systemic circulation begins from the ...
- Question 9 of 20Medium
The valves inside the heart function to ...
- Question 10 of 20Medium
The blood group that can receive donations from all groups in small amounts (universal recipient) is ...
- Question 11 of 20Medium
White blood cells (leukocytes) function to ...
- Question 12 of 20Medium
The exchange of substances between blood and body cells occurs in ... vessels.
- Question 13 of 20Medium
Normal human blood pressure is generally about ...
- Question 14 of 20Medium
In plants, the tissue that transports water and minerals from the roots to the leaves is ...
- Question 15 of 20Hard
The correct order of systemic circulation is ...
- Question 16 of 20Hard
Anemia is a blood disorder that occurs due to ...
- Question 17 of 20Hard
Blood pressure that continuously exceeds the normal limit is called ...
- Question 18 of 20Hard
Water can rise from the roots to the leaves because of ...
- Question 19 of 20Hard
Narrowing of the coronary arteries that supply blood to the heart muscle can cause ...
- Question 20 of 20Hard
The pulse rate increases during exercise because ...