Which characteristic of capillaries aids in the process of diffusion?
a. slow blood flow
b. one cell thick walls
c. rapid blood flow
d. both slow blood flow and one cell thick walls
e. both one cell thick walls and rapid blood flow
D
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How many phosphodiester bonds are needed to join 50 deoxyribonucleotides in a DNA strand?
A. 50 B. 49 C. 51 D. 102 E. 100
Prolonged sitting decreases production of _____, which facilitates removal of harmful lipids from the blood
a. lactase b. ADP c. ATP d. lipoprotein lipase e. phosphates
Wow! That medicine really tasted bitter! In which lobe of the cerebrum did you consciously think about that?
A) frontal B) occipital C) temporal D) parietal
How would you expect the structure of ribozymes in organisms that grow in very hot environments, such as hot springs or deep-sea vents, to differ from those in organisms that grow in cooler environments?
A) The hairpins would have more G's and C's in the primary structure. B) These ribozymes would exhibit no tertiary structure. C) These ribozymes would have more hairpin secondary structures. D) The hairpins would have more A's and U's in the primary structure.