<span>The scientific study of the distribution and
abundance of organisms and the interactions that determine distribution
and abundance. This definition encompasses not only the plants and
animals that Haeckel recognized but microscopic organisms such as Bacteria, Archaea and protozoa, as well.</span>
I believe its C-Mitochondrion.
It the powerhouse of the cell.
-Steel jelly
Answer:
4
If the beaker was not cleaned, starch could have been in it.
You have to remember that a scientific hypothesis is a question about whether or not something will happen the way you think it will.