Population size depends upon
a. deaths.
b. births.
c. migration.
d. immigration.
e. all of these.
E
Biology & Microbiology
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Changes in temperature and pH can decrease an enzymes activity by breaking ________.
A. chemical bonds. B. covalent bonds. C. ionic bonds. D. hydrogen bonds. E. none of the above is correct.
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A transgenic organism _____
a. carries a gene from another species b. has been genetically modified c. carries a gene from another species and has been genetically modified
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Viral infection is a major cause of cancer
a. True b. False
Biology & Microbiology