★ Proteins Quiz
What type of proteins are chemical messengers?
A. Receptors
B. Enzymes
C. Hormones
D. Antibodies
Select your answer:
Topics:
Body System Interactions Skull Sterile Medication Products Counseling: Fact or Myth? Immunity Neurons Unintentional Injuries Protozoan Diseases Asexual Reproduction Integumentary and Musculoskeletal System Human Anatomy Study Guide Vitamin Circulation of Blood Macromolecules TrichologyOther quiz:
Health › Viewthe part of a tooth that we see, the crown, is covered by
A. root
B. dentin
C. enamel
Skin Structure, Growth & Nutrition › View
The coiled base of the sudoriferous gland is known as the _____.
A. secretory coil
B. sweat duct
C. sebaceous gland
D. elastin coil