Choose the best definition of a fossil. any trace of an organism that has been converted into rock the process that leads to preservation of any body part from an organism that lived in the past any trace of an organism that lived in the past a bone, tooth, shell, or other hard part of an organism that has been preserved
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Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
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Biology, 22.06.2019 02:00
2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?
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Biology, 22.06.2019 09:00
The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey
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Choose the best definition of a fossil. any trace of an organism that has been converted into rock t...
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