Yes. It is mostly from fish, but there are many kinds.
It will go to the sewer or a septic tank. Back then drains used to lead to the ocean. That's what happens.
People and animals go in the ocean
the ocean
Yes
Very little, because there are other fish and organisims that feed off of the fish poop.
Indian Ocean and Pacific Ocean.
Yes, along with the poop of every other ocean creature. If you have swam at the beach then you have to.
Yes, this is quite likely.
the largest ocean is Pacific and the second ocean is the Arctic ocean
Yes. Holding it in can have lots of negative consequences, including impacted bowels, which can lead to death.
Poop!!!!!! Lead or Pewter!
Obviously not - since it's an artificial doll !