All of the following factors are thought to contribute to colony collapse disorder EXCEPT ________
A) abnormally harsh winters
B) loss of habitat such as prairie
C) the use of Roundup to kill weeds
D) parasites and pathogens
E) the use of insecticides
Answer is A) abnormally harsh winters
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Which of the following is not a type of spatial distribution that can be assessed using geographic information systems (GIS)?
A. irregular B. random C. clustered D. regular
Identify the following igneous rocks based on their texture and mineral content
What will be an ideal response?
The mass of an atom of 12C is exactly 12 atomic mass units. Which of the following describes a mole of 12C atoms?
A) a sample which contains 6.02 x 10^23 atoms of 12C B) a sample which weighs exactly 12.011 grams C) both a and b D) neither a nor b
Energy transfer between trophic levels in aquatic systems is generally
A) less efficient than terrestrial food pyramids. B) less efficient than a detritus food web because aquatic systems lack fungi. C) inverted, in which more energy is transferred from one trophic level up to the next. D) more efficient than terrestrial food pyramids.