A) a large group of cells that grew without regulation.
A tumor is where there is a mutation that causes cells to lose their ability to self regulate, so they reproduce too fast and become unspecialised, causing a tumour.
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Answer:
well um the answer is AI2O3
Explanation:
so i don't know why that isn't an answer sorry....
Answer:
Flowering plants grow plants and use seeds to reproduce, or make more plants like them.
Explanation:
The answer is stimulant although it can sometimes be a depressant