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Biology, 22.06.2019 13:20
There are only about 250,000 known fossil species. true or false
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Biology, 22.06.2019 18:00
The diagram below shows the layers of a rock having a trilobite: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has one shaded rhomboid shape, the middle layer has a rhombus with a diagonal along with two identical organisms marked as, trilobite, in the key, the top layer has two semicircles. a key is shown on the right side of the diagram. the shaded rhombus is marked as a, the rhombus with the diagonal is marked as b, the semicircle is marked as c which statement about the rock fossils is true?
Answers: 2
Biology, 22.06.2019 22:00
Explain how negative feedback caused the changes in plasma glucagon concentration observed during the experiment.
Answers: 2
During which phase of mitosis do the chromosomes pull away from the middle of the cell?...
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