Sponges are the simplest bilateral animal and do lack a body cavity. A sponge has two layers of tissue.
It would be 100 times greater if you are going from a pH of 5 to 7
Scientists estimate that the fishing industry kills between 0.97 and 1.97 trillion wild fish worldwide every year, further straining fragile oceans and other waterways that are already poisoned by pollution from oil spills, agricultural runoff and immense amounts of garbage.
Explanation:
abrasion, pressure release, thermal expansion and contraction and crystal growth.