When you apply heat with a certain temperature on a substance, it may change state.
For example, pure water boils at 100°C, water changes from liquid to gas, that's a change of state, it only happens if the heat u applied is over or at 100°C.
D is the answer to the question
Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. ... During cell differentiation, the cell size and shape changes dramatically, as does its ability to respond to signaling molecules
Answer:
The bring problems with them.
Explanation:
For example if you bring a insect from over seas and it gets releast into a farm land it could kill off all the crops.
