An antihistamine will
A. reverse spasms of respiratory smooth muscles.
B. inhibit the activity of lymphocytes.
C. bind to histamine receptors on target organs.
D. block synthesis of leukotrienes.
Answer: C
You might also like to view...
Which immune cells are long-lived cells that can respond to a later encounter with the same antigen?
a. helper T cells b. plasma cells c. dendritic cells d. memory cells e. cytotoxic T cells
A mountain rain shadow is the ____
a. arid area on the windward slope b. wet area on the windward slope c. arid area on the leeward slope d. wet area on the leeward slope e. arid area on either slope
In the alternation of generations, what is formed when a spore germinates?
A) A haploid stage called the gametophyte. B) A plant that produces spores when mature. C) An increased number of spores. D) A haploid stage called the sporophyte. E) A plant that meiotically produces sex cells.
What are the three advantages of using hormones as messengers rather than nerves to control bodily processes?
What will be an ideal response?