coastal estuary
That would be Estuary.
The answer is plankton..
Millions of years ago, when these rocks formed, it is likely that the environment was very different from the present. It could have been a marine environment with shallow seas, indicating the presence of marine organisms. Alternatively, it could have been a terrestrial environment with rivers, lakes, or forests, suggesting the presence of land-dwelling organisms. The specific characteristics of the rocks can provide further insight into the environmental conditions at that time.
An inability to adapt to its environment would likely be the most common.
The change in sea levels will prevent many organisms from migrating. Marine organisms will be the most likely to adapt.
They can become sedimentary rock, most likely limestone.
The likely word is the transposition algae, a plural noun (from alga) for mostly one-celled marine organisms.
maybe, maybe not The world may never know
Natural Selection a theory originated by Charles Darwin states that the fittest will survive. The organisms most likely to survive are the fittest, the ones that can adapt themselves to a changing environment. Edit: it's those with traits best suited to their environment. -Holy122
Small shelled marine organisms are the most common easily observable fossils found in rocks.
Small shelled marine organisms are the most common easily observable fossils found in rocks.
This phenomenon is known as survival of the fittest.