Answer:
The student claim is incorrect
Explanation:
Uncontrollable cell division leads to formation of tumours and cancers if cells were to lose contact inhibition and migrate to other parts of the body.
B. Stalagmites forms directly below a stalactite. If you go inside a cave, you will notice some spikes that points down: these are the stalactites. The rest that forms right below these rocks are the stalagmites - which are also spiked.