Vampire
100

Name at least 2 differences between red and white blood cells.

Red blood cells transport oxygen, white blood cells protect the body from disease and infection. 

Red Blood Cells (Erythrocytes) and White Blood Cells (Leukocytes) 

Red=more White=Less 

Red blood cells are smaller, White blood cells are larger 

Red= 1 type White=multiple types

200

What is a mosquitoes favorite blood type?

Type O

300

How many tests get run on every unit of donated blood? 

Bonus: How many units of blood gets used a day?

15 tests (11 are for diseases). 


around 29,000

400

How many red blood cells does the human body make a second?

About 2 million red blood cells a second

500

How many blood types can cows have?

800+