Select your answer:
Topics:
Diabetes Hematology / Oncology Cell Transport Tracheostomy Care Muscular System Movements Immune Response Anatomy and Histology Parkinson Disease Environment Cell - Fundamental Unit of Life Histology HS Food and Nutrition Biomedical Gene Expression Microorganism - DiseasesOther quiz:
Bacteria and Viruses › ViewWhy do scientists use a different system to classify viruses?
A. Many scientists do not believe that viruses are alive
B. Many scientists believe that viruses are living
C. Many scientists do not believe viruses are real
Biology › View
Red blood cells are produced from the ……
A. heart
B. arterie
C. bone marrow
D. veins