What type of thermal burn is MOST commonly associated with inhalation injury?
A) Steam burns
B) Flame burns
C) Scald burns
D) Arc burns
Ans: A) Steam burns
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Archaea is divided into three phyla
Indicate whether the statement is true or false.
Within each "unit" composing a shoot of a vascular plant, you would observe leaves attached at the ___________, and a large stretch of stem without leaves at the _________
A. node; shoot apical meristem B. node; internode C. shoot apical meristem; node D. internode; node
Which of the following statements about agricultural fertilizers is false?
A. Global nitrate and phosphate resources are in decline. B. Large amounts of fertilizers are necessary to maintain high crop yields year after year. C. Nitrate and phosphate runoff cause eutrophication in different communities. D. Phosphates are obtained exclusively through mining. E. If the human production of fixed nitrogen stopped, the amount of fixed nitrogen added to the biosphere each year would only be about half of what it is now.
Despite the differences between eukaryotic and prokaryotic cells, prokaryotes have proteins that are distantly related to eukaryotic actin filaments and microtubules. What is likely to be the most ancient function of the cytoskeleton?
(a) cell motility (b) vesicle transport (c) membrane support (d) cell division