Eruptions of volcanic ash are not considered hazardous to people
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following constitutes a difference between a glycolipid and a sphingolipid?
A) only one contains sphingosine B) only one contains a fatty acid C) only one contains phosphate D) only one contains a carbohydrate E) both c and d F) All of the choices a through d are differences.
The maximum time water can be excluded from the hydrologic cycle (i.e., exist in storage) is at least ________
A) a day B) a month C) a year D) hundreds of thousands of years E) as old as the Earth itself
As global climate change warms certain mountain ranges, the temperature optima for the insect species living on the mountain is causing these insects to
A) move farther up the mountain. B) move down the mountain. C) move to a new biome. D) become parasitic.
Which of the following acids is a component of the venom injected by stinging ants?
A) butyric acid B) acetic acid C) formic acid D) stearic acid