★ Cell Structure and Function Quiz
The smallest unit of life is ____
A. a protist
B. an atom
C. bacteria
D. a cell
Select your answer:
Topics:
Viruses and Prions Human Muscle HHB Immunology Forensics: Blood Levels of Organization Biological Molecules Musculoskeletal System Shoulder Maximal Oxygen Consumption (VO2 Max) Nail Diseases and Disorders Pathogens, Disease and Immunity Respiration, Immune System, Blood Cells Cell Theory & Melanoma Oncology Tissue Repair PathologyOther quiz:
Respiration › ViewWhat organisms that NOT undergo respiration
A. Animals
B. Plants
C. Rocks
D. Fish
Circulatory System › View
Each day human heart pumps approximately ———– litres of blood
A. 5,000
B. 1,000
C. 7,570
D. 2,560