Why is the protist kingdom sometimes called the “odds and ends” kingdom?

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.

One of the reasons that stars are so large is because

How are fossils used to date organisms?