Disruptions of the cell cycle lead to A. normal cell growth
B. multiple alleles
C. uncontrolled cell division
D. cell differentiation

Someone pls help!

Which of the following is a consequence of urban heat islands? increased precipitation downwind of the city? increased precipitation upwind of the city? decreased winds within the city? increased winds within the city?

Which direction does the energy flow in this energy pyramid ?

Ascientific idea becomes valid when it is what?