I think it is D for mountains form from the movement of tectonic plates which create volcanoes that erupt and form mountains
        
             
        
        
        
The amoeba is made of one cell.
        
             
        
        
        
Answer:  "sexual" ; in the sense that they reproduce "sexually" —and NOT asexually.
__________________________________________________________
        
             
        
        
        
Answer:
Neurons are made up of three major parts: a cell body, or soma The part of the neuron that contains the nucleus of the cell and that keeps the cell alive., which contains the nucleus of the cell and keeps the cell alive; a branching tree like fiber known as the dendrite, which collects information from other cells and sends the information to the soma; and a long, segmented fiber known as the axon, which transmits information away from the cell body toward other neurons or to the muscles and glands.