Natural extinction happens when the environment changes beyond what an organism can adapt to, or when it is confronted with another species better able to utilize life-giving resources, but it is always a result of the struggle for survival.
(Natural extinction; happens; T:when the environment changes beyond what an organism can adapt to, or when it is confronted with another species better able to utilize life-giving resources) (it; is; T:always; a result of the struggle for survival) (the environment; changes; ) (an organism; can adapt; ) (it; is confronted; with another species better able to utilize life-giving resources) (another species better able; to utilize; life-giving resources)
Natural extinction it the environment an organism it another species better able
happens is changes can adapt is confronted to utilize
T:when the environment changes beyond what an organism can adapt to, or when it is confronted with another species better able to utilize life-giving resources
T:always a result of the struggle for survival
with another species better able to utilize life-giving resources
life-giving resources