Given a scientific passage and an answer, generate a question for the given answer.

[Q]: Passage: Take a close look at this gorilla hand. The similarities to a human hand are remarkable. Comparing anatomy, and characterizing the similarities and differences, provides evidence of evolution. Answer: evolution
[A]: Comparing anatomy, and characterizing the similarities and differences, provides evidence of what process?

[Q]: Passage: Infectious diseases are diseases that spread from person to person. They are caused by pathogens such as bacteria, viruses or fungi. What can you do to avoid infectious diseases? Eating right and getting plenty of sleep are a good start. These habits will help keep your immune system healthy. With a healthy immune system, you will be able to fight off many pathogens. The next best way is to avoid pathogens. Though this is difficult, there are steps you can take to limit your exposure to pathogens. Answer: immune system
[A]: What system is responsible for defending your body against sickness?

[Q]: Passage: Without communication, animals would not be able to live together in groups. Animals that live in groups with other members of their species are called social animals. Social animals include many species of insects, birds, and mammals. Specific examples are ants, bees, crows, wolves, and human beings. Answer: social animals
[A]:
Animals that live in groups with other members of their species are called what?