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

A(n) an ionic bond forms when the metal sodium gives up an electron to the nonmetal chlorine.
What forms when the metal sodium gives up an electron to the nonmetal chlorine?

Ectothermic vertebrates control body temperature to just a limited extent from the outside by changing behavior.
What type of vertebrates control body temperature to just a limited extent from the outside by changing behavior?

Ectothermic vertebrates control body temperature to just a limited extent from the outside by changing behavior.

What type of vertebrates control body temperature to just a limited extent from the outside by changing behavior?