Answer:
Are you asking what she should do? If you're asking that i suggest whoever it is that got hurt to decide for herself. If the concussion is very bad and she have seen a doctor and they told you to sit out or something else then you should do as told. But if its mild, then she can know her limits and what she wants to do.
High unemployment is an example of a common push factor. An abundance of jobs is an example of a pull factor
The endoplasmic reticulum, golgi apparatus, and the mitochondria.