A because the nervous system gives you sign and how you should be felling so it makes y perspire after you felt as if u were in danger
Answer:
C
Explanation:
all of the DNA the makes up a chromosome
If want a direct answer it would be the decrease in mice, but if you want to get technical the decrease in grain spills caused mice to leave so that would be the indirect cause
They can enter your blood stream (via breathing/ingesting) and once in your bloodstream they can enter cells and mutate your dna, which can cause cancer/birth defects/ reproductive harm