C.Natural Selection would be the answer
Answer:
headaches, lethargy or feeling tired, cravings, muscle pain, nausea, bloating and even insomnia.
Explanation:
Multiple things cause the migration of people.
Economic issues arise:
People run out of jobs and opportunities
(BIGGEST REASON)
Cultural reasons:
Forced intentional migration had occurred in the past on accounts of slavery and political instability
Safety:
More popular reason now is because of war or fights with other countries, the people want to keep their family safe so they move them or move with them
Hope this helped
Answer:
23 pairs nucleus parents and dna
i know that the 23 pairs is right and i also think that the rest is right to