H2O
Hb
O2
CO2
Fe
Correct answer is B
Hemoglobin, a protein in red blood cells, is symbolized as Hb.
When was Winston Churchill born?...
Which disease is characterized by the loss of memory and cognitive abilities?...
What is the primary language spoken in Namibia?...
How do you turn off Quick Add suggestions on Snapchat?...
Who was the British monarch during the American Revolution?...
What is the diameter of a basketball hoop?...
Which U.S. President signed the Voting Rights Act of 1965?...
Which country is home to the Great Victoria Desert?...
Which of these is used to unlock a door?...
Which plant is commonly used to make herbal tea for digestive health?...