The answer would be sedimentary rock because sedimentary is made up of small grains and also formed by deposition...
The sense of equilibrium responds to movements of the head. It is divided into two types —
Static and Dynamic
They will actually explode or burst
So What happens is the pure water outside has a high water potential while the cytoplasm inside the animal cell is a low water potential, water will diffuse down a water potential gradient through the semi-permeable membrane of the animal cell and cause the cell to swell (inflate like a fully-blown balloon), the result is that the delicate, elastic cell membrane<span> can't tolerate the internal pressure coming from the cytoplasm so it tears causing the cell to burst.</span><span>
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<span>It is through whistles that dolphins interact with the pod. Each dolphin has a distinct whistle that identifies it with other dolphins of its pod. If an individual is in danger, it uses a particular noise that indicates aid is needed, so the pod responds quickly.
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Small dolphin species gather into multi-member pods as a way to compensate for their size when facing predators.</span>