Dandelions are small flowers that are considered weeds and can be found througou
ID: 53019 • Letter: D
Question
Dandelions are small flowers that are considered weeds and can be found througout the continental US. Based on this iformation, which of the following statements is the most accurate?
Dandelions have a wide tolerance for habitat characteristics
Dandelions can only tolerate a narrow range of habitat characteristics
Dandelions must be omnivores
Dandelions are not native to the US
The soil in and around areas called fens is quite basic (has a pH of 8 or higher). Therefore you would predict
fens are areas of high plant diversity
fens are areas of low plant diversity
many of the plant species found in fens are endemic (do not grow well elsewhere)
fens have a low diversity of plants that are mostly endemic
A researcher is studying the impact of soil acidity on the plant and animal community in a fen. She is also examining how the soild acidity affects the nitrogen contents of the plants and the water in the soil. She is therefore a(n)
ecosystem ecologist
population ecologist
behavioral ecologist
botanist
How is energy typically stored in the food chain?
in carbon-carbon bonds
in hydrogen-hydrogen bonds
in carbon-hydrogen bonds
in oxygen-oxygen bonds
Dandelions have a wide tolerance for habitat characteristics
Dandelions can only tolerate a narrow range of habitat characteristics
Dandelions must be omnivores
Dandelions are not native to the US
Explanation / Answer
Explanation: Fens frequently have a high diversity of plant species including some carnivorous plants which are endemic such as Pinguicula. These plants rarely present worldwide.
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