Which of the following is a source of genetic variation?
A. genetic recombination
B. gene flow
C. natural selection
D. genetic drift
E. adaptations
A
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ATP synthesis is exergonic
Indicate whether the statement is true or false.
Clostridium botulinum produces a deadly toxin that stops muscle contractions by
a. destroying cell membranes. b. killing mitochondria. c. disrupting the structure of actin filaments. d. preventing ATP synthesis. e. blocking acetylcholine release.
The extra energy required to destabilize existing chemical bonds and to initiate a chemical reaction is called:
A. exergonic energy B. catalytic energy C. kinetic energy D. endergonic energy E. activation energy
________ is the area of biology that states that living things undergo gradual structural and functional changes over long periods of time.
Fill in the blank(s) with the appropriate word(s).