Topics: Human Body Systems Quiz
What important substance is replenished as blood flows through the heart?
A. iron
B. nitrogen
C. water
D. oxygen
Select your answer:
Topics:
Personal Growth Plan Metabolism Differentiation and Division of Human Cells STNA (State Tested Nursing Assistant) Virus and Bacteria Tutor Oral Biology Hospitality Skeleton Anatomy - Cellular Respiration Bacterial Growth and Culturing Conditions Diagnostics and Pathology Reports Dentistry Medicine Clinics Respiration in Organisms Heart AnatomyOther quiz:
Digestive System (Gastroenterology) › ViewThe _____ is a hollow organ that contracts when a fatty meal goes into the intestine.
A. cystic duct
B. cecum
C. none of these is correct
D. duodenum
E. bladder
Biotechnology › View
What happens to lymphocytes that are likely to bind to self-antigens?
A. They mature into B cells
B. They undergo apoptosis
C. They become memory cells
D. They produce antibodies