Echinoderms, they are among the most common invertebrate animals in the marine environment of virtually any part of the world, among them we can find species such as sea cucumber , salmon and cod fish, they have chamois cloth like outer layer, then we have the Crinoids, another example of marine species with feather, popularly they are called sea lilies and feathery stars, they have a solid calcite skeleton; they were so abundant in the paleozoic seas that their remains formed large limestone thicknesses.
Ok so this is biology well vegitation is certain plants well the plant in its inside have certain medicines that cant be used on humans or animal
*rocks
*Trees
those are what that medicine can go to well on sediment that medicine causes the sedeiment to slow goes sediment can break and kinda disolve like type well that medicineslows it down and keeps sedement longer teachers rteach what they think if u feel i did something wrong please let me know and i can do more research
True. Otherwise we would never stop growing although broken bones regain cartilage into solid bone when we break one but it doesn’t expand.
