What bacterial structure is responsible for separating the daughter DNA molecules after replication?
A) cross wall
B) cytoplasmic membrane
C) fimbria
D) spindle
E) cytoskeleton
Ans: B) cytoplasmic membrane
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Heavy metals in contaminated soils can be taken up by hyper-accumulating plants. Lead and cadmium taken up this way are often accumulated in the plants'
A. rhizomes. B. trichomes. C. stomates. D. sclerenchyma. E. root nodules.
Flexors are what?
What will be an ideal response?
Which of the following statements about cells is true?
A) All cells have cell walls.
B) All cells have internal structures that move.
C) All cells are attached to other cells.
D) All cells are motile.
All of the following are features of the scientific method EXCEPT
A) hypothesis formulation. B) observation and experimentation. C) deductive reasoning. D) supernatural causes. E) repeatable by other scientists.