nodthug

What is the period where chromosomes duplicate? What is the process by which a cell maintains differences in concentrations of certain ions on either side of the plasma memberane called and how is it conducted? What are the main differences between cytokinesis in plant cells and in animal cells? Thanks guys.

If the universe's fundamental building blocks are one-dimensional extended objects rather then 0-dimensional points, wouldn't this completely rule out the notion that atoms exist? If so, would cosmic strings be measurable, or more of a conceptual rule of thumb that helps us understand the universe better?