What is the correct answer to this biology multiple choice question? (difficult)

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above