False in order for an ecosystem to survive there has to be some sort of competition. for example, if there were no sharks to eat little fish the little fish would over populate and then the little fish would run out of food which then means that whatever the little fish ate is now extinct and so on hinting the food chain's name. If it wasn't for competition nothing would survive
If they find them unattractive there's a probability they wouldn't mate because they are different species and genera
The answer is A. random gene pool changes in small population.
There are less trees and plants to absorb CO2 (carbon dioxide) and convert it to oxygen.
