Barriers include all of the following EXCEPT ________.
A. mucous membranes
B. skin
C. sebaceous gland secretions
D. erythrocytes
Answer: D
You might also like to view...
In fungi and plants
A) The cell wall controls osmotic swelling. B) The sodium-potassium pump regulates osmotic balance. C) Chemical messengers are not used to communicate. D) Collagen is used to build tissues.
In adipose tissue, hormone-sensitive lipase
A) Is controlled by corticotropin, epinephrine, and glucagon. B) Is activated via the IP3 pathway of signal transduction. C) Regulates the docking of LDL and other lipoproteins. D) All of the above
Air passing from the pharynx to the trachea must pass through the:
A. nasal cavity. B. bronchi. C. larynx. D. diaphragm.
What type of chemical messenger will act locally on nearby cells?
A. paracrine B. neurotransmitter C. autocrine D. endocrine