The process of evolution ultimately depends on changes that occur in the ________ of organisms
Fill in the blank(s) with correct word
genes or DNA (either term can be used here)
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Which of the following is a hormone that acts on the kidney's collecting ducts, increasing activity of sodium-potassium pumps so more sodium gets reabsorbed?
a. atrial natriuretic peptide (ANP) b. renin c. ADH d. aldosterone
Which of the following is false?
a. All respiratory surfaces must be kept moist. b. The amount of gas diffusing across a respiratory membrane is dependent upon the surface area and the partial pressure of each gas. c. The surface area of a growing cell increases at the same rate as its volume. d. Ventilation maintains partial pressure gradients between the atmosphere and the lungs. e. Breathing and ventilation are equivalent in respiration.
Which of the following is found in RNA but not DNA?
A) adenine B) cytosine C) deoxyribose D) guanine E) uracil
Which is NOT true regarding retroviruses?
a. Reverse transcriptase creates dsDNA from the ssRNA genome. b. Integrase inserts the viral dsDNA into the host cell’s genome as a provirus. c. Protease excises the provirus from the host cell genome. d. New nucleocapsids exit the cell by budding.