The answer is
D. another natural disturbance
To be pregnant, an equilibrium in ph and chemical contents of the uterus and the outside environment has to be maintained, to prevent any reactions of the chemical sustances taken in by the person pregnant and the baby *has something to do with concentration gradient, hence yes, pregnancy can count as homeostasis
8. eukaryotic cell
9. this organelle are structures that have specific jobs within cells
10.plants *I believe*
