Answer:
Food/ diet
Explanation:
malnutrition is getting too little or too much of certain nutrition while overeating is taking too much of nutrition, both happens in food/diet
Answer:
The center of the Milky Way most likely contains a supermassive black hole.
Explanation:
Because it is an eliptical galaxy, it has a little rotation to it but not enough to flatten out, thus the center would contain a supermassive black hole.
(A) Least concern, if it has a large enough population and enough resources then there is no worry for the certain species.