At which of the following checkpoints is the DNA checked for damage and, if damage is present, the cell is placed in G0 phase?
a. M
b. G2
c. G1
d. None of these are correct.
b. G2
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Phagocytosis involves all EXCEPT which of these?
a. receptors b. a meshwork of microfilaments c. pseudopod formation d. bulk-phase endocytosis e. vesicle fusion with lysosomes
The longer this structure is the greater is an animal's capacity to conserve water and to concentrate
solutes for excretion in the urine. a. Bowman's capsule b. loop of Henle c. proximal tubule d. ureter e. urethra
How do bony fish regulate buoyancy?
A) With an air-filled swim bladder B) With a large, oil-filled liver C) By constantly swimming at an upwards angle D) Through the calcium in the bones, which makes the skeleton lighter than the water
The Law of Thermodynamics that states that increases in entropy are favored is:
A. The Fourth Law of Thermodynamics B. The Third Law of Thermodynamics C. The Second Law of Thermodynamics D. The First Law of Thermodynamics