Most sympathetic effector junctions release norepinephrine but a significant number release acetylcholine instead. Which of these is an example of an organ of the cholinergic type?
A) the heart
B) a blood vessel in the skin
C) a sweat gland
D) the liver
E) the salivary glands
C
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The nucleotide triplet in tRNA that base-pairs with a complementary triplet in mRNA is called the codon.
Answer the following statement true (T) or false (F)
Explain how these statements differ, and identify which one(s) is/are correct. Explain what is wrong with each incorrect statement.
A. A chemical reaction is at equilibrium when there is no further change in substrates. B. A chemical reaction is at equilibrium when the amounts of substrates and product no longer change. C. A chemical reaction stops when it reaches equilibrium. D. A chemical reaction is at equilibrium when the amount of substrate equals the amount of product.
The dural sinuses drain mostly into the internal ________ vein.
What will be an ideal response?
Adding one mole of NaCl to one liter of water will lower the water concentration twice as much as adding one mole of glucose.
Answer the following statement true (T) or false (F)