In the human systemic circuit, blood will pass through all but which of the following?
a. liver
b. limbs
c. lungs
d. digestive organs
e. brain
C
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Carbonic anhydrase inhibitors cause less movement of carbonic acid toward carbon dioxide production and are used as a prophylactic treatment of altitude sickness
Altitude sickness occurs when a hiker ascends to altitudes where the density of oxygen is low. How does this decrease the symptoms of high altitude sickness? A) The excess hydrogen ions are excreted in the urine and the resulting loss of acidity increases respiration rate. B) The excess bicarbonate ions are excreted in the urine and the resulting loss of blood pressure increases respiration rate. C) The excess bicarbonate ions are excreted in the urine and the resulting increase in blood acidity leads to an increase in ventilation. D) The excess bicarbonate ions in the blood increase the affinity of hemoglobin for oxygen.
Answer the following statements true (T) or false (F)
1. Savior siblings born using ARTs have provided needed transplants for ailing siblings. 2. Assisted Reproductive Technologies are typically not covered by health insurance. 3. A lesbian couple may use intrauterine insemination (IUI) to have a child. 4. ESTs are cDNAs made from the mRNAs in a cell type that is abnormal in a particular illness. 5. Whole-genome shotgunning is faster, but it misses some sections that the clone-by-clone method detects.
A J-shaped growth curve is converted to an S-shaped one:
a. when the parents are past reproductive age b. if the data are plotted in reverse c. when the carrying capacity is reached d. if reproduction stops e. only for fast-growing populations such as bacteria
The mosaic effect of X inactivation in human
females can be observed in a. skin color. b. hair color. c. fingernails. d. distribution of sweat glands. e. all of these