Why would an EMT give fluid to a hemorrhage patient fluid instead of blood, if the fluid has no red blood cells?
A. The fluid is infused with large amounts of oxygen first.
B. The fluid contains artificial hemoglobin.
C. The fluid prevents dangerous air bubbles from forming in the blood vessels.
D. The fluid restores blood pressure, so that the remaining blood can deliver oxygen and nutrients.
Answer: D
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Evolution _____________. (Mark true (t) or false (f) for each statement.)
____ is a change in allele or genotype frequency over time ____ always results in a visible change in the physical characteristics of an organism ____ is a process that takes many, many generations ____ is only seen in unicellular organisms ____ is a natural phenomenon that is outside the influence of humans ____ can only occur in the natural environment ____ is not seen in domesticated animals ____ always results in an increase in an organism's fitness ____ is inherently random in nature ____ acts on animals but not plants What will be an ideal response?
Each of the following is considered a part of the body's second line of defense except:
A) fever. B) inflammation. C) interferons. D) lysozyme.
Because of the high pressure and cold temperatures, few species of organisms survive in the deep benthic zone of the ocean
Indicate whether the statement is true or false
Answer the following questions true (T) or false (F)
1. Some bacteria can obtain their nutrition by photosynthesis. 2. Spherical bacteria are called cocci. 3. Rod-shaped bacteria are called spirochetes.