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

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

multiplying and dividing the two decimals and the eqations by the same number of the overalls

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.