The pad of fibrocartilage between vertebrae that acts as a cushion is called the disk.

The answer is; intervertebral discs

This disc is composed of cartilaginous and fibrous tissue. They act as good shock absorbers and also allow individual vertebrae some degree of movement for the flexibility of the spine. The intervertebral discs also act as ligaments that hold the vertebral discs together.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs