They won't compete with each other because they may have different niches. For example, cows and dogs won't compete with their food since cows only eat grass, whereas dogs eat meat and vegetables but not raw grass.
I hope I was able to explain clearly. Have a good day.
Population decrease and extinction
Hydrogen has one valence electron. To make it an ion, you need to remove this valence electron. When you remove an electron, the element becomes positive because you are taking away the negative
A : DNA in the nucleus of the egg controls all cell activities
Citizens of the World State are cremated when they die, so their bodies can be recycled and used as fertilizer. Their bodies aren't considered valuable, there are no funerals or grieving of the dead.
Hope this helps!
-Payshence xoxo