Invasive species can rapidly disrupt an ecosystem because they have a high biotic potential and face little environmental resistance
Indicate whether the statement is true or false
TRUE
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The presence of a hard chancre in primary syphilis is representative of the body's
A. intense inflammatory response. B. antibody response. C. rejection of the invaded tissue. D. septicemia due to infiltration of the organism.
Soil particles are classified on the basis of
A) age. B) color. C) water content. D) size.
Will is a graduate student working in a microbiology lab. He is given the task of characterizing a newly discovered nitrogen fixing bacterium. What type of tests or observations will help him determine whether it is a member of the Cyanobacteria, alphaproteobacteria, or gammaproteobacteria?
What will be an ideal response?
A drug researcher has developed a macromolecule that can bind to scrapie and thus change the prions conformation. What effect might this have on the actions of scrapie?
A. The shape change could prevent the scrapie protein from converting normal proteins to scrapie proteins. B. The shape change could block the translation of scrapie RNA. C. The shape change could stop the replication of scrapie DNA. D. The shape change could stop the transcription of scrapie RNA. E. The shape change could induce scrapie protease activity.