A disease-causing microorganism or virus is referred to as a(n)
A. avirulent infection.
B. colony.
C. commensal.
D. pathogen.
D
You might also like to view...
Answer the following statements true (T) or false (F)
1. You would not expect a protein synthesis inhibitor to block learning processes in the relevant neurons of Aplysia or yourself. 2. Even single stimuli can activate protein kinase A in presynaptic neurons involved in the gill-withdrawal reflex in Aplysia. 3. New neurons do not appear in the brain of adult vertebrate animals. 4. Activities like playing a musical instrument regularly can affect the size of brain regions involved in performing these activities.
What evidence exists of the angiosperms that lived during the Cretaceous period?
a. cave art depictions b. preserved DNA c. fossilized leaves d. botanical drawings and lab notes
Which of the following is NOT a difficulty that medicine has encountered in its attempts to cure human diseases through gene therapy?
a) The transfer organism—a bacterium or virus—may get into unintended cells and cause disease. b) It is difficult to get the working gene into enough cells at the right rate to have a physiological effect. c) For many diseases, a malfunctioning gene has not been identified. d) It is difficult to get the working gene into the specific cells where it is needed. e) All of the above are difficulties that medicine has encountered in its attempts to cure human diseases through gene therapy.
Which organism is used to initiate the fermentation of cabbage to make sauerkraut?
A. Saccharomyces cerevisiae B. Streptococcus lactis and Lactobacillus C. Propionibacterium D. Spirulina E. Leuconostoc mesenteroides