The following questions refer to the description below.
You were asked to give a presentation about fossils to a group of
young students. You tell the students that the fossil record shows
how organisms can change over time, but unfortunately the fossil
record is incomplete. After your talk a student tells you that his
pet salamander has died and he wants his salamander to be
fossilized. The boy plans to lay his salamander on the grass and
cover the salamander's body with leaves and twigs. You had told the
class that a critical step in the fossilization process is the
burial of an organism.
Another student asks you why the fossil record is incomplete. Which
statement(s) below provide the most likely explanation?
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Answer : both C Aand D
Hard-shelled or bony organisms fossilize better than soft-bodied organisms because it is hard to decompose them by decomposers. bones are the last part to decay.
Not all habitats preserve fossils equally well; habitats that are acidic with little oxygen support few decomposers and contain well-preserved fossils. As decomposers are the one responsible for decay of a fossil but if there is acidic environment then they will not be able to grow and eat the dead body.
The following questions refer to the description below. You were asked to give a presentation about...