In DNA, thymine binds with adenine and cytosine binds with uracil
Indicate whether the statement is true or false.
FALSE
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Which statement about hypotonicity of the body fluids is incorrect?
a. Diabetes insipidus can cause it. b. It occurs when excess free H2O is present. c. Drowsiness, headache, confusion, lethargy, weakness, and edema are symptoms associated with it. d. Drinking excess fluid is a cause of it. e. The cells become swollen because of it.
If the pacemaker cells in the SA node become more permeable to potassium ions,
A) the heart rate will increase. B) the heart rate will decrease. C) the membrane will depolarize. D) the membrane will hyperpolarize. E) both heart rate will decrease and membrane will hyperpolarize.
Parasympathetic stimulation slows the rate of depolarization of the SA node and thus decreases the heart rate
Indicate whether the statement is true or false
Progesterone
a. exerts a strong inhibitory influence on the uterine musculature. b. is responsible for the development and maintenance of female secondary sex characteristics. c. promotes duct development in the breasts. d. both (a) and (c) above. e. all of these answers.