One topic you can talk about its closed plane curve, or talk about how it was discovered lol. Thats all i got never heard of a school working on “ellipse” thats crazy
For factors of effects- all of these
A.geographic isolation because the earth made it that way not man so it would be that way.
c.they can apply to multiple names just not one just like teens you slang there's not just one word for one thing they do
C. Endocrine
Definition, relating to or denoting glands which secrete hormones or other products directly into the blood.