I'd go with A, Nucleus. I hope this helps!
Respiring without oxygen. You use glucose but it forms lactic acid instead of co2 and water
<span>This will create a
multi-nucleate cell. A multi-nucleate cell is a cell with 2 or more
nuclei but shares a cytoplasm. This
often occurs when a cell undergoes mitosis without cytokineses.</span> It seems
to be a common occurrence in animal cells.
They formed complex organisms such as microorganisms and cells