★ Human Body Quiz
What gives color to our skin?
A. brown spots
B. presence of melanin
C. the foods that we eat
D. exposure to the sun
Select your answer:
Topics:
Hematologic System Cardiovascular System Terminology The Human Eye Pathophysiology - Inflammation Economic importance of Bacteria Eye Nutrition Respiratory Acidosis Skull Lymphatic System Joints & Movement Genes and DNA Neuroanatomy Health and Nutrition PolioOther quiz:
Medical Terminology › Viewad lib
A. ambulate
B. freely
C. admission
D. history
Cell › View
What part of the cell forms a barrier between an animal cell and its environment?
A. cell membrane
B. cell wall
C. ribosome
D. cholesterol