The connectivity of the human brain—and the development of this connectivity—can be described at coarse, intermediate, and fine levels. At the coarsest level, brain areas are created by the process of , which occurs . At the intermediate level, connections between individual neurons are created by the process of . The number of synapses peaks and then declines as a result of a process called . At the finest level, the strengths of individual neurons are adjusted as a result of experience. This is the primary mechanism of plasticity

Me brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula.5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects.8. describe the planets’ orbits around the sun.9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets.13. what causes the seasons?