The graph below shows the energy associated with a chemical reaction. The activation energy decreases
once a certain type of molecule is added
What type of molecule causes the activation energy to
decrease as shown in the graph?

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

What is the difference between bacterial infections and viral infections?

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?