What is the name for the “in between” phase in cell division?

How do living things obtain phosphorus

What's the waste product of electrons and pyruvate combining in fermentation?  

Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i