What benefit are corticosteroids in the treatment of asthma?
A) They induce bronchoconstriction.
B) They induce bronchodilation.
C) They decrease mucus secretion into the airways.
D) They increase blood flow to the airways.
E) They reduce inflammation of the airways.
Answer: E) They reduce inflammation of the airways.
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The 2+ in Cu2+ tells us that this atom ________.
A. has two more neutrons than protons B. has two more electrons than protons C. has two more protons than electrons D. has two more electrons than neutrons
In which of the following ways is cardiac muscle similar to skeletal muscle?
What will be an ideal response?
In a hypotonic solution, a plant cell will ________
A) undergo plasmolysis B) become flaccid C) burst D) become turgid
Answer the following questions true (T) or false (F)
1. It is desirable for a classification system to be based on the evolutionary history of the organisms being studied. 2. The earliest evidence of life on Earth dates to about 3.8 billion years ago. 3. The metabolism-first model suggests that a self-replicating RNA molecule was responsible for driving the evolution of the first forms of life.