Question

what happens to normal cells when rapidly dividing cells invade their space? necrosis suffocation tumor formation metastasis

Explanation:

When rapidly dividing cells (like cancer cells) invade normal cells' space, they can cause necrosis. Necrosis is the death of cells due to injury or lack of proper environment (e.g., nutrients, space). Suffocation is not a standard term in this cellular context. Tumor formation is related to the growth of these abnormal cells but not directly what happens to normal cells in this invasion scenario. Metastasis is the spread of cancer cells to other parts of the body, not about the immediate effect on normal cells in the invaded space.

Answer:

necrosis