Answer:
D
Explanation:
It can't be A as nuclei must be positive.
It can't be B as nuclei must contain at least one proton, and no electrons.
Technically C may be true, but the question is asking about the nucleus. Not the electron cloud. Electrons aren't found in the nucleus. Only protons and neutrons.
The most appropriate answer is B !! Homeostasis
it is a term to describe the need to maintain the suitable environment to make the cell survive !!
Answer:
A myocardial infarction (heart attack)
Explanation:
I think the letter "D" would be the best answer. i'm not completely sure though.
