This is because the modern lifestyle we're living and people are living in the US is very taxing and can cause people to feel extremely bad about themselves for prolonged periods of time. Furthermore, it's also possible people/doctors are misdiagnosing depression and saying someone is depressed when he or she actually isn't.
Because they are the essential micronutrients for the different metabolites of living organisms?
Pollution caused the environment to become more darkly colored, so moths were selected to be blacks and greys. Before pollution they were white and lighter colors. <span />
Answer:
C
Explanation:
The circulatory system would fail, and the entire organism would suffer.
------i took the test and at first i chose what the person above me said which was A, but i got it wrong. when i looked at the "review" to see which ones i got wrong, it showed that the correct answer is C.