Question

Select all that apply.

Hemoglobin _____.

A. picks up oxygen

B. has an attraction for carbon monoxide

C. has an iron ion

D. is found in erythrocytes

Answer 1

a   
it picks up oxygen 

Answer 2

Picks up oxygen, has an attraction for carbon monoxide, has an iron ion, and is found in erythrocytes.

All of them the above.