An unexpected freeze that kills a population of chipmunks is an example of ________
A) a density-independent factor
B) a biological control
C) a density-dependent factor
D) a population momentum
A
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Most drugs used to treat AIDS are aimed at:
a. processes unique to retroviral replication b. strengthening the immune response c. helper T cell generation d. destroying the viral infected cells e. preventing secondary infections
A restriction enzyme is most comparable to a ___________
A. screwdriver D. fork B. hammer E. ruler C. pair of scissors
The "Central Dogma" of molecular biology described by Watson and Crick describes
the passing of genetic information from DNA to RNA by translation. the passing of genetic information from RNA to protein by transcription. the inheritance of traits between generations. the production of energy in a cell. the directional flow of genetic information in cells.
Roses are classified as
A) angiosperms. B) bryophytes. C) seedless vascular plants. D) gymnosperms. E) ferns.