Fish fossils occur in sediments deposited underwater. That could be sea bottom, lakes, or rivers. Generally, seabottom sediments are raised to the surface by tectonic uplift. Also, when sea level falls during ice ages, sea bottom sediments are exposed to the atmosphere.
Answer:
eurkaryotic cells have a nucleus a cell membrane aswell as a mitochondria DNA protein ECT
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1. Oxygen (O2)
2. Carbon Dioxide (CO2)
3. Water (H2O)
4. Glucose (C6H12O6)
5. Adenosine Triphosphate (ATP)