Select TWO events that occur when a neurotransmitter binds and activates an excitatory synapse. a. Ca2+ ions move into pre-synaptic cell
b. Na+ ions move into post-synaptic cell
c. The probability of firing an action potential is decreased
d. The probability of firing an action potential is increased
e. Cl- ions move into post-synaptic cell

What adaptation is apparent in the bodies of the three tortoise species shown in figure 16-2

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return

How many types of rock can form from the rock cycle