★ Nervous, Musculoskeletal Systems, Integumentary Systems Quiz
What is melanin responsible for?
A. Producing sweat
B. Giving the skin its color
C. Keeping the skin moist
D. Protecting from bacteria
Select your answer:
Topics:
Types of Immunity Nucleic Acids Vessels Transport System in Man Corona Multicellular Organisms Musculoskeletal Diseases Types of Reproduction Carbohydrates / Fat-soluble Vitamins Digestion Anatomy - Muscle Contraction and Growth Hematology & Blood Banking Cell Reproduction The Respiratory System Economic importance of BacteriaOther quiz:
Maximal Oxygen Consumption (VO2 Max) › ViewVO2 Max begins to decline:
A. In late childhood
B. In adolescence
C. In young adulthood
D. After maturation
Nervous System › View
This is the negatively charged ion inside the neuron:
A. Sodium
B. Potassium
C. Protein
D. Electron
E. Neutron