Biology, 30.05.2020 19:58, caseypearson377
One of the challenges of studying life from ancient times is that not all organisms form fossils. Which of the following explains why some organisms form fossils and others don't. (Select all that apply)
a. The tracks or burrows of an organism must be filled with sediments before they are disturbed.
b. The organism must first get stuck in rock.
c. The soft tissue of the dead organism must be eaten by scavengers or decomposers before the bones can be preserved.
d. The organism's body must be covered by sediment or another substance before its body decays.
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Alaboratory investigation included examine prepared slides of pond water singled celled organisms with a nucleus and either cilia or flagella were visible these organism probably belong to the kingdom
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