Examlex
Use the information in the following paragraph to answer the next few questions.
A hypothetical bacterium swims among human intestinal contents until it finds a suitable location on the intestinal lining. It adheres to the intestinal lining using a feature that also protects it from phagocytes, bacteriophages, and dehydration. Fecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled. The bacterium is not susceptible to the penicillin family of antibiotics. It contains no plasmids and relatively little peptidoglycan.
-Some of the proteins that allow this bacterium to swim are related (in an evolutionary sense) to proteins that
Perineal Muscles
Muscles located between the genital area and the anus, important for urinary and fecal continence as well as sexual function.
Urinary Catheter
A tube inserted into the bladder to provide a passage for urine to exit the body, often used when individuals are unable to urinate naturally.
Sediment
Particles that settle at the bottom of a liquid or are transported by fluid movements, commonly found in natural and industrial processes.
Blood Clots
Masses that result from the coagulation of blood, often obstructing blood flow in the circulatory system.
Q5: Given a population that contains genetic variation,
Q6: A P. bursaria cell that has lost
Q9: All protists are<br>A) unicellular.<br>B) eukaryotic.<br>C) symbionts.<br>D) monophyletic.<br>E)
Q10: Approximately how far back in time does
Q14: In which vertebrates is fertilization exclusively internal?<br>A)
Q32: Speciation<br>A) occurs at such a slow pace
Q38: Whatever its ultimate cause(s), the Cambrian explosion
Q45: _ is to xylem as _ is
Q59: You are maintaining a small population of
Q109: Orchid bees are to Brazil nut trees