Critical Reasoning (CR) | Re: Either food scarcity or excessive hunting can threaten a population of

Premise :
-Food scarcity or excessive hunting can threaten a population of animals
-Food scarcity: individuals will reach reproductive maturity LATER than OTHERWISE
-Excessive Hunting: individuals who reach reproductive maturity EARLIER will come to predominate.

Conclusion :
-It should be possible to determine whether mastodons became extinct because of FOOD SCARCITY OR HUMAN HUNTING, since there are fossil remains from before and after mastodon populations declined and ______

Pre-thinking:
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