Biology

Biology, 23.06.2019 22:30, quennnshyan7276

Earths history which of the following is the best example of an index fossila. animal paw printb. a trilobite fossil c. a dinosaur bone d. a fern print on a rock which best signifies the reason for extinction of various species a. climactic events b. natural selection c. survival of the fittest d. disease

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Biology, 25.06.2019 20:00, neisha2507

Atrilobite is considered on index fossils because this organism existed during the limited in earths history . that means any fossil located in the layer of rock beneath a layer containing trilobite fossils is then a trilobite.

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Chemistry, 05.07.2019 13:00, danielahchf

Which can be classified as a trace fossil a.dinosaur bone b.shrimp burrow c.imprint of a fern leaf d.mold of a clam shell

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Biology, 28.07.2019 22:00, BreadOfTheBear

Researchers recently discovered an exquisite fossil of a fern (land plant) in sweden. the plant was preserved instantaneously when buried in a lava flow. under a microscope, scientists can see nuclei, some in different stages of cell division, along with some individual chromosomes. this fossil fern was found in a layer along with dinosaur fossils. how old could this fossil be, based upon this information and dates of events in the history of life

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Chemistry, 08.08.2019 20:10, vane1161

The table below shows the depths at which an index fossil and three other fossils were found. fossil data fossil depth (meters) 294 385 375 index fossil 210 which statement is correct? • the index fossil is the oldest fossil. the index fossil is the youngest fossil fossil a is the same age as the index fossil fossil b is the same age as the index fossil.

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