Answer:
Graptolites lived from the Cambrian Period, about 510 million years ago, disappearing in the Carboniferous Period, around 320 million years ago.
hope this helps!
Answer: I hope it helps!!
Explanation: I can't really explain on computer through a keyboard and stuff lol, but it's worked out. Please let me know if it's wrong :-)
The stomach is the correct answer it is lined with an digestive enzyme called pepsin.
B . Excessive commercial fishing
Reason: the other options are good things this is the only bad thing