Mature red blood cells
a. can live for about a year
b. are the largest cells in the blood
c. promote clotting
d. carbonic acid
Ans: d. carbonic acid
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What are the two main divisions of the cell cycle?
A. apoptosis and interphase B. mitosis and cytokinesis C. mitosis and meiosis D. nucleus and cytoplasm E. interphase and cell division
Which two processes are responsible for the shape of the curve at Time B?
1. transduction 2. entry of single-stranded Hfr DNA 3. rolling circle replication of single-stranded Hfr DNA 4. activation of DNA pumps in plasma membrane A) 1 and 2 B) 1 and 4 C) 2 and 3 D) 3 and 4
See diagram. How many protons does Carbon have?
a. 12.001 b. 6 c. 18.001 d. 12
Where does the copper used for wiring and plumbing come from?
A. Most copper is found in ocean sediments. B. Most copper is mined from the ground. C. Most copper is found along riverbanks. D. All copper is mined from the surface. E. All copper is manufactured synthetically in factories.