Which of the following is not a factor in determining if an animal should be placed on the endangered species list?

1. Present or threatened destruction, modification, or curtailment of its habitat or range
2. Over-utilization of the species for commercial,recreational, scientific, or educational purposes
3. Inadequacy of existing regulatory mechanisms
4. Disease 
5. Other natural or man-made factors affecting its continues existence
             I'm so sorry I took long, I'm answering answer after answer :)
              Not sure if this is helpful :)
I know these are things in order for an animal to be endangered, but just pick answer that's not these I guess? "Which of the following"

Ifound this on google “laws of chemical combination. it states that matter can neither be created nor destroyed. it stated that a given compound always contains exactly the same proportion of elements by weight.” i hope this you for what your looking for.