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

[Q]: Some viruses carry a few viral enzyme molecules within their capsids.
[A]: Some viruses carry a few viral enzyme molecules within their what?


[Q]: You call a substance that is not an acid or a base neutral.
[A]: What do you call a substance that is not an acid or a base?


[Q]: A(n) gastropods is noted for having its eyes at the tips of stalks or tentacles that emerge from its head.
[A]:
What type of creature is noted for having its eyes at the tips of stalks or tentacles that emerge from its head?