In the next phase of binary fission after the phase shown in this diagram, a temporary structure forms in the space within the FtsZ ring shown here. What is that structure called?
a. plasma membrane
b. cell wall
c. septum
d. origin
c. septum
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Perennials are ________.
A. flowering plants to live for two years B. flowering plants that live for one year C. a type of gymnosperms D. flowering plants that keep on reproducing for many years
Which of the following would be a primary consumer?
A. tree B. decomposer C. carnivore D. herbivore
About 180 liters of blood plasma is filtered into human nephrons per day and, of that amount, about 2-3 liters leaves the body as urine. Therefore, the percentage of plasma filtrate that leaves as urine each day is about ________.
A. 10-20 percent B. 0.5-1.0 percent C. 1-2 percent D. 20-50 percent E. 0.1-0.2 percent F. 5-10 percent
Which of the following can cause birth defects?
A) chickenpox B) measles C) roseola D) smallpox E) rubella