What is the name of the us judicial branch's power to declare laws and executive orders unconstitutional

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.

What caused the settlement of more african americans in the mississippi alluvial plain region then in the ozark mountains region?

Which organelle is marked with an x?