★ Properties of the Hair Quiz
The middle layer of hair that is fibrous and has hydrogen, salt and disulfide bonds.
A. cuticle
B. cortex
C. medulla
D. scutulla
Select your answer:
Topics:
DNA and Polypeptide Synthesis Enzymes and Metabolic Pathways Life Cycle - Bee SSTI and Bone Infections Sexual Reproduction Soldiers of Defense Cells and Organ Systems Body Movements Germs Physical Fitness Pediatric Cardiology Central and Peripheral Nervous System Facial & Dental Injuries Hematology in Veterinary Medicine Dental SpecialtiesOther quiz:
Oxygenation › ViewAs a nurse you should be well knowledgeable of the physiology of oxygenation. Which of the following gasses helps keep the alveoli open?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
Nutrition and Biochemistry Vocabulary › View
A barrier that allows some substances to pass through, but not all substances.
A. Semi permeable
B. Impermeable
C. A shield that stops all substances