In the human body:
a. bacterial cells can survive only inside the eukaryotic cells.
b. the diversity of bacterial cells living in the mouth is exceeded by the diversity living on the skin.
c. there are more microbial cells than human cells.
Ans: c. there are more microbial cells than human cells.
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If chromosomal DNA from a host is the only type of DNA carried by a transducing particle, what can be concluded regarding transduction in this case?
A. Transduction in this case could be generalized or specialized depending on the phage involved. B. Transduction in this case is generalized rather than specialized. C. Transduction in this case is neither generalized nor specialized. D. Transduction in this case is specialized rather than generalized.
What activity of Pol I makes it uniquely suited for its role in bacterial DNA replication?
What will be an ideal response?
You find some rather strange plants in your backyard. They consist only of thin, pale yellow stems that are wrapped around other species of plants growing nearby. You experiment by unwrapping some of the strange yellow plants and planting half of them alone in pots of soil and half in pots with other plants from your yard. You water and fertilize both sets of pots, but after a few weeks you find that the yellow plants that were potted alone have died, while those potted with other plants are thriving. What term would you use to describe the strange yellow plants?
A. asexual B. holoparasitic C. monophagous D. aposematic E. hemiparasitic
In ecosystems, internal cycling is dominated by
A) global nutrient turnover. B) wet and dry deposition. C) decomposition and biological uptake. D) photosynthesis and weathering.