What two main factors are responsible for the asymmetry in the coevolutionary arms race between microbial pathogens and their multicellular hosts?
What will be an ideal response?
ANS:
When compared to their multicellular hosts, microbial pathogens have much shorter generation times and much higher population numbers.
You might also like to view...
What is the evolutionary advantage of bacteria producing restriction endonucleases?
A. These enzymes are a defensive measure of bacteria to defend themselves against invading DNA of bacteriophages. B. Bacteria use these enzymes to attack other bacteria and destroy their DNA. C. They make these enzymes for humans to use in manipulating DNA. D. Bacteria use these enzymes to repair their own mistakes made during DNA replication.
In the Northern Hemisphere, seasonal variation in temperatures is caused mainly by ____
a. the Earth's elliptical orbit taking it closer to and farther away from the sun b. the Earth's tilt on its axis of 23.5? c. seasonal variation of output of energy from the sun d. warm equatorial air masses rising and spreading north and south e. uneven warming of the ocean's surface water
A product of glycolysis is ________
A) lactic acid B) ethyl alcohol C) O2 D) pyruvic acid
Often when a person is admitted to the hospital, an intravenous solution of normal saline is begun. Since this does not harm the patient, what is the tonicity of normal saline compared to your blood?
A. hypertonic B. hypotonic C. isotonic D. osmotonic E. pretonic