Staphylococcus aureus produces ________, an enzyme that results in the accumulation of fibrin around the bacterial cells
A) coagulase
B) collagenase
C) lipase
D) M protein
Answer: A
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____ is the process where new genes evolve from duplicates of old ones
Fill in the blank with the appropriate word.
After the cell enters which phase does division seem inevitable?
a. G1 b. G2 c. S d. Cytokinesis e. Cells are always preparing for division.
Endophytic fungi
a. are parasitic fungi that live inside the leaves and stems of most plants. b. are symbionts that live inside the leaves and stems of most plants. c. are parasitic fungi that live inside the cells of most animals. d. are fungi that live inside the cells of other fungi. e. cause disease in important grasses such as fescue.
Even if people want to use sustainable energy sources and technologies, several barriers can limit their use. Which of the following is NOT a potential barrier to more widespread use of sustainable development practices or technologies?
a. sustainable energy can be much more expensive to produce than nonrenewable options b. construction and use of sustainable energy technologies can use hazardous chemicals or generate hazardous wastes that need to be carefully disposed of to avoid polluting the environment c. construction fo sustainable energy production facilities can destroy habitat d. the technology for energy production and harvesting from some sustainable sources still needs to be optimized e. all of the above are potential barriers to use of sustainable practices