Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Are humans a new or old species on the earth?
Are humans a new or old species on the earth?

Rod is the general shape of centrioles.
What is the general shape of centrioles?

Because their embryos are surrounded by a thin membrane, reptiles are considered amniotes.

Because their embryos are surrounded by a thin membrane, reptiles are considered what?