The intervertebral discs, which are between vertebrae, are the parts that prevent the vertebrae from grinding against one another.
The intervertebrals discs act as a cushion; they absorb the stress and shockw that occur during movement, preventing such grinding.
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Answer is: If the amount of snakes increased, the number of rabbits decreases.
A food chain refers to a linear arrangement of associations in a food web beginning from producer species and terminating at zenith predator species. In the given question, the increase of snakes population will eventually result in a decrease of rabbit population, a rabbit is a herbivore which is consumed by the higher predator snake.
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The cell wall is a rigid organelle composed of cellulose and lying just outside the cell membrane. The cell wall gives the plant cell it's box-like shape. it also protects the cell. The cell wall contains pores which allow materials to pass to and from the cell membrane.
