Treponema pallidum, a bacterium associated with syphilis, is not considered a pathogen because to date it remains unculturable in the lab, and, therefore, Koch's postulates are unable to be fulfilled
Indicate whether the statement is true or false.
Answer: FALSE
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Many marine and freshwater bony fish achieve osmoregulation via _____
A) loss of water through the gills B) gain of salt through the gills C) loss of water in the urine D) no drinking of water E) gain of water through food
While they are simple relative to cells, viruses often have a very diverse collection of components. Which one of the following choices is LEAST likely to be found as part of a virus?
A. proteins with functional binding sites B. membrane components C. single-stranded DNA D. ribosomes E. glycoproteins Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about virus structure? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
One portion of the cell theory states that ____
a. all cells have a nucleus b. all cells divide by meiosis c. all living organisms are made up of one or more cells d. cells arise through spontaneous generation e. growth is solely the result of cell division
The somatic senses include all EXCEPT which
one of the following sensations? a. balance b. pain near the body surface c. temperature d. touch e. pressure