At the current rate of habitat destruction, what percentage of all living species will be extinct in 50 years?
A) 1%
B) 10%
C) 25%
D) 50%
C
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Although bacteria can be used to produce proteins for therapeutic uses, what can be a disadvantage to using a prokaryotic system?
A) Proteins may not be post translationally processed correctly. B) Transcripts from eukaryotic open reading frames are degraded quickly in prokaryotic cells. C) Some prokaryotic promoters do not work well to transcribe eukaryotic open reading frames. D) The structures that eukaryotic mRNAs fold into are frequently used as rho termination signals.
Which hypothesis states that life developed from nonliving matter?
a. abiotic evolution b. natural selection c. organic evolution d. chemical evolution e. inorganic evolution
Two types of vaccines for polio have been developed, an inactivated whole (IPV ) and a live attenuated (OPV ) vaccine. Compare and contrast the advantages and disadvantages of the two polio vaccines
What will be an ideal response?
Taiga is characterized by:
A) coniferous forest, low tree diversity, and no permafrost. B) permafrost, short growing seasons, and sparse coniferous trees. C) poor drainage over permafrost, few to no trees, and short growing season; shrubs and sedges dominate. D) few ecological dominants, short growing seasons, and sparse deciduous trees. E) pines as an early successional stage before deciduous trees, rich understory, and cold climate.