Answer;
-Pure chemical substance and element
Explanation;
-Pure substances are substances that are made of only one type of atom or molecule.A pure substance can be either an element or a compound, but the composition of a pure substance doesn’t vary.
-An element is a pure substance that cannot be broken down into different types of substances by chemical means. All elements are pure substances. An element is composed of a single kind of atom. An atom is the smallest particle of an element that still has all the properties of the element.
-Tungsten is an element and therefore a pure substance.
I'm not sure what you mean by this but here is a diagram of a nephron!! Hope this helps?
Photosynthesis occurs in plant cells, but does not occur in animal cells.
1)Diffusion
2)osmosis
3)active transport
4)facilitated diffusion
5)diffusion
6)
7)active transport
8)exocytosis
these are the ones i know
