What do eukaryotic cells have that prokaryotic cells do not?

What molecules does hemoglobin decay into over time

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

What might explain the real-world results, show in the graph to the right, for one class of twenty students? check all that apply.