Select your answer:
Topics:
MS Neurology Tissue Repair Pathology Skeletal System Histology, Bone Repair Joints Psychopathology BMS Cell Cycle and Cancer Cosmetology Enzymes and ATP Structure Confusion, Dementia, & Alzheimers Disease Human Health Knee Anatomy Pathology - Chronic Inflammation Pulmonology Endocrine System Terms Cardiovascular System History of MedicineOther quiz:
CRISPR and Sickle-Cell Disease › ViewWhat is the primary cause of sickle-cell disease?
A. Misshapen and sticky blood cells
B. Clogged blood vessels
C. Lack of fetal haemoglobin
D. Abnormal forms of haemoglobin
Nervous System › View
How many neurons make up the brain?
A. 1 million
B. 100 million
C. 1 billion
D. 100 billion
E. 1 trillion