C. decomposer
C. from other organisms
<span>If cancer, stroke, and heart disease were eliminated, demographers estimate that the life of an average 70-year-old would be extended approximately 7 years.It is because these are the major diseases that target the middle aged people.If these are eliminated people would be more heslthy and enjoy a longer life span</span>
Answer:
Im pretty sure its known as emigration but lmk if im wrong
Explanation:
The answer is Mercury! Hope this helps
c natural variation in the bacteria means that some die while other are more resident and survive
