Which of the following are symptoms of septic shock?
A. tachycardia
B. reduced blood flow to vital organs.
C. respiratory failure
D. weak pulse
E. All of the choices are correct.
Ans: E. All of the choices are correct.
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Fructose and galactose both have six carbon atoms, twelve hydrogen atoms and six oxygen atoms, just like glucose. A friend of yours says: "Since those sugars have the same number of atoms, they should have the same name." You Answer: "While they do have the same number and type of atoms,
A. they are all polysaccharides and have slightly different functions within organisms and therefore have different names." B. they are named differently because of their quaternary structures, which is very important in carbohydrates, especially glucose." C. they are named differently because when heated above their optimal temperature they become denatured and will not react with their substrates." D. they are named differently because they are involved in different DNA nucleotide formation." E. they are named differently because they are alternate forms of the monosaccharide, glucose."
Which relationship is MOST likely to be observed between species of different classes?
A) A deltaproteobacterium oxidizes hydrogen sulfide into sulfate, which is then reduced by an epsilonproteobacterium. B) An epsilonbacterium oxidizes the hydrogen sulfide produced by a sulfur-reducing deltaproteobacterium. C) A sulfate-reducing epsilonbacterium produces sulfite, which a deltaproteobacterium reduces to hydrogen sulfide. D) Syntrophic metabolism of sulfur by a deltaproteobacterium and an epsilonproteobacterium occurs.
Which of the following are examples of convergent evolution in plants? Select all correct choices
A. the vascular cambia of gymnosperms and angiosperms B. the vascular cambia of quillworts (Isoetes) and angiosperms C. water transport in ferns and some bryophytes D. the leaves of lycophytes and gymnosperms E. pollen in angiosperms and gymnosperms
Beginning with growth of the pathogen at the top, place the events in order that can lead to a rapid exit of the pathogen
a. inflammation results b. motility (irritability) of the bowel increases c. fluid stool provides rapid exit for pathogen d. increased peristalsis results in diarrhea e. intestinal pathogens grow in intestinal mucosa