OBJECTIVE LIFE SCIENCE
DIVERSITY AMONG LIFE FORMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A paleontologist was interested in finding out how likely organisms were to fossilize in different types of soil. She knew that if an organism decays more slowly it would be more likely to form a fossil. She decided to bury dead organisms of the same species in different soil types and determine the rate of decay in each type of soil. She planned to weigh the organism before they were buried and again after they had been buried for six months. What was the independent variable in her investigation?
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The type of soil.
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The weight of the organism.
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Fossilization usually occur in organisms with hard, bony body parts, such as skeletons, teeth, or shells. Soft-bodied organisms, such as worms, are rarely fossilized. Sometimes, however, the sticky resin of a tree can become fossilized. This is called fossilized resin or amber.
Detailed explanation-2: -Approximately only 1/10 of 1% (0.001) of living things ever become fossilized. In order for a fossil to form, the organism’s remains must not be significantly disturbed by a scavenger, rotted away by decomposers like bacteria, or destroyed by natural forces such as weathering which are all very common.
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