Given a scientific question, generate a correct answer to it.

[EX Q]: Mixtures that have the same composition throughout are known as what kinds of mixtures?
[EX A]: homogeneous

[EX Q]: What population on earth is already harming the environment due to less resources to go around?
[EX A]: humans

[EX Q]: Fractures, osteoarthritis, and rickets are problems of which body system?
[EX A]:
skeletal system