The specialized structure in a tube worm in which endosymbiotic, chemolithotrophic bacteria live is called a(n) ________.
Fill in the blank(s) with the appropriate word(s).
trophosome
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Despite being called the reverse citric acid cycle, it is currently identified as the most ancient autotrophic pathway
Indicate whether the statement is true or false.
Which process results in microevolution without any form of natural selection?
a. genetic drift b. mutation c. development of new characteristics during an individual's lifetime d. genetic variation e. nonrandom mating
Which of the following mutations always
lead(s) to a shift of the mRNA's reading frame?
a. deletion and insertion b. deletion and substitution c. insertion and substitution d. substitution e. insertion
Initial treatment for tetanus in an unimmunized person with a puncture wound is
A) tetanus toxoid. B) tetanus immune globulin. C) penicillin. D) none; no action is necessary. E) debridement.