Explanation:
This much is undeniable. Based on the magnetic fingerprints locked into ancient rocks, we know that over the last 20 million years, magnetic north and south have flipped roughly every 200,000 to 300,000 years (this rate has not been constant over the planet's lifetime, though).
This could weaken Earth's protective magnetic field by up to 90% during a polar flip. Earth's magnetic field is what shields us from harmful space radiation which can damage cells, cause cancer, and fry electronic circuits and electrical grids.
The component which would be found in a eukaryotic cell but not in a prokaryotic cell is the nucleus.
<h3>What is the difference between a eukaryotic and prokaryotic cell?</h3>
A eukaryotic cell is a cell that possesses a true nucleus surrounded by a nuclear membrane.
Examples of a eukaryotic cell is animal and plant cells.
A prokaryotic cell is a cell that lacks a true nucleus.
Examples of a prokaryotic cell is a bacterial cell.
Therefore, the components which would be found in a eukaryotic cell but not in a prokaryotic cell is the nucleus.
Learn more about eukaryotic and prokaryotic cells at: brainly.com/question/2088739
I'm totally sure that the next step is A)Gametophyte. As it's the most suitable from given above.
