In a Particular Layer of Rock, a Number of Fossilized

question 79

Multiple Choice

In a particular layer of rock, a number of fossilized ferns are found, but no fossilized mosses are found. What conclusions can be drawn from this finding?

• A)The soft tissues of mosses may not have fossilized as readily as the more decay-resistant tissues of ferns, so it is difficult to draw any conclusions from this limited sample.
• B)Mosses and ferns did not coexist in the same environment.
• C)There are fewer species of moss than ferns.
• D)Ferns evolved earlier than mosses, so it is not surprising to find a layer with only ferns and no mosses.
• E)Ferns decompose more rapidly than mosses and thus are more likely to fossilize.

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