The brain recieves stimuli. Your brain does a lot of things for you. It is one of the busiest organs in your body. Your brain stimulis can enjoy various brain stimulis games to keep your brain healthy and sharp. if it stays healthy, everything follows after.
X-rays are the radiation that allows us to see through the skin to visualize bones
Producers, because according to food pyramid, only 10% of energy is passed onto the next layer, where the other 90 is passed off as heat, so there must be more producer in order to sustain the ecosystem.
Answer:
19. mass and dustance between them.
