DNA replication occurs as a part of the cell cycle. Which best summarizes why DNA replication is considered an essential part of the cell cycle?
A) It controls the production of enzymes in the cell.
B) It regulates the timing of each step of the cell cycle.
C) It allows each cell division to produce cells with greater amounts of genetic material.
D) It allows individual cells to divide into two cells each with complete genetic information.
Ans: D) It allows individual cells to divide into two cells each with complete genetic information.
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Which organic compound is not only responsible for energy storage, but also can provide thermal insulation?
a. lipids b. proteins c. nucleic acids d. carbohydrates e. monosaccharides
Ion channels are found in the plasma membranes of neurons and muscle cells
__________________ Indicate whether the statement is true or false.
You should never eat shark fin soup because
A) because it helps the shark with his buoyancy B) they let the shark die after cutting off its fins C) because the soup does not taste good D) it may be poisonous
According to the evidence collected so far, the animal kingdom is _____
A) monophyletic B) paraphyletic C) polyphyletic D) euphyletic E) multiphyletic