★ Biology Quiz
the elment that enters in the structure of haemoglobin is ….
A. sulphur
B. iron
C. phosphorus
D. cobalt
Select your answer:
Topics:
Cell Biology & Biotechnology DNA Doctor Equipments Blood Groups Bacteria & Disease Bacteria & Viruses Forensic Pathology (Autopsy) Assessment Hematology in Veterinary Medicine Parkinson Disease Limitation of Senses Chronic Diseases Muscular System Movements The Nervous System and The Senses Anatomy of the Eye HomeostasisOther quiz:
Immune System › ViewWhat do B cells produce?
A. antigens
B. macrophages
C. T cells
D. antibodies
Safety and First Aid › View
Can all nose bleed be severe
A. Yes
B. No