D. It's harder body parts. A lot of fossils are of the skull, therefore that would lead one to think that it would be harder<span />
That statement is True
Gas giants refer to the large planets the made up from large composition of gas.
These planets are located significantly further from the sun compared to another planet, which makes them have more debris left over from their formation, which will turn either into rings or moons (satellites) that surround these planets.
The Paleozoic Era ended with the largest extinction event in the history of Earth, the Permian–Triassic extinction event. The effects of this catastrophe were so devastating that it took life on land 30 million years into the Mesozoic Era to recover
The genus and the Species
