Nitrogen fixation by bacteria occurs only in the root nodules of leguminous plants
Indicate whether the statement is true or false
FALSE
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We have a family of genes that code for different forms of myosin. Where in the sequence would you expect to see differences among these genes?
A. regulatory region only B. product coding region only C. regulatory and/or product coding regions D. no difference in any aspect of the gene sequence
If primary production increases in an ecosystem, it would be reasonable to expect that
A. nutrients are a limiting factor. B. gross production would not increase. C. cellular respiration would increase. D. the trophic web has become more complex. E. the biomass of herbivores would increase.
The alarm rings again; you hit the snooze button, but it is broken; you try to ignore the ringing, but that
sound is activating which of the following brain regions or functional groups of neurons?
a. limbic system b. reticular formation c. blood brain activator d. resonance tomography system e. hippocampus
__________ is mostly water in which diverse ions and molecules are dissolved. Fill in the blank(s) with the appropriate word(s)