The Whites Cliffs of Dover are artifacts of ages of diatoms being deposited in the ocean. Stromatolites are rocky formations made long ago by many generations of cyanobacteria.
coral reef
Invertebrates are more common an vertebrates. An estimated 98% of the world's animal life is made up of invertebrates.
Definetely the sea, Even if you took all the Insects (largest group of land dwelling invertebrates by far) and the plants, It would pale in comparison to the amount of flora and invertebrate fauna in the oceans. The Ocean is where Life began and it has more species diversity, quantity, and mass than double the invertebrates on the Earth's land.
invertebrates are animals which do not have a skeleton made up of bones . Some examples of invertebrates are - Jellyfish , Corals , Starfish , Sponges , Crabs and Shrimps
Land and aquatic vertebrates are similar in that they both have a vertebral column. They are both either primary or secondary consumers as well. A difference is that vertebrates that live only in the water do not have fully developed hind legs.
chitin
They were the original form of life and they came before vertebrates.
The first animals to enter land were the invertebrates, followed by some fish which later evolved into amphibians.
Some invertebrates live in a variety of environments such as the ocean, freshwater habitats, soil, and even on land. Examples include coral reefs for marine invertebrates, rivers and lakes for aquatic invertebrates, and forests or grasslands for terrestrial invertebrates.
It is made up of arches.
of course
Almost anything (think of an octopus) except get up and walk around on dry land.