The technique known as ________ can be used to examine nutrient cycling in microbial communities as well as identify the microbes taking up the element of interest.
What will be an ideal response?
stable isotope probing, stable isotope dosing, stable isotope microcosms, stable isotope analysis
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Action potentials
a. can move up or down an axon, away from or towards the cell body. b. move in a one way direction towards the cell body . c. move in a one way direction away from the cell body. d. can jump from cell to cell. e. do none of these.
If you were able to increase the kinetic energy of the molecules inside your body, how would this affect your body temperature?
A. It would increase B. It would remain the same C. It would decrease
The rate at which evolution is occurring cannot be estimated by:
A. inferring that apes are related to humans. B. studying comparative anatomy. C. interpretation of the fossil record. D. measuring the degree of difference in genetic coding.
Darwin realized that most species produce many more offspring than is necessary to maintain a constant population. The "excess" individuals in a population
A) mutate and are able to adapt to new environments. B) die before they can reproduce. C) evolve to become new species. D) migrate to another location.