Which of the following pH values is the strongest acid?
A. 6.35
B. 4.50
C. 7.45
D. 6.90
Ans: B. 4.50
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The band between cardiac muscle cells is called a(n) ________ ________.
Fill in the blank(s) with the appropriate word(s).
If a post synaptic cell is stimulated to threshold by temporal summation this implies that ________
A) the postsynaptic cell can be influenced by only one presynaptic cell B) the postsynaptic cell is sending frequent action potential C) a presynaptic neuron is sending frequent EPSP D) the presynaptic neuron is sending frequent IPSP
T lymphocytes mature in the thymus in response to
A) thymosins. B) interferon. C) cytokines. D) antibodies.
When a muscle spanning a joint contracts, it pulls the ________ toward the ________.
A. smaller bone; larger bone B. insertion; origin C. larger bone; smaller bone D. origin; insertion