Biology MCQs
Practice free Biology multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 1146 questions — no login required.
Question 136hard
Which parts of the heart receive blood from the lungs?
Question 137easy
The universal donor belongs to blood group
Question 138medium
Person having blood group 'B' can donate the blood to person having blood group
Advertisement
Question 139medium
Scientist who discovered blood groups was
Question 140medium
Where do arteries carry blood?
Question 141medium
When a foreign body inter into blood circulatory system the reaction is started by
Advertisement
Question 142easy
How many chambers does a human heart have?
Question 143medium
The muscle which separate the right side and left side of heart is known as
Question 144hard
What is the pH value range of human blood?