What is sympatric speciation?

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.

Where would an earthquakes epicenter be in this diagram

Which major eukaryotic lineages form the bikonta, a monophyletic group characterized by two flagella as a synapomorphy?