Coralline and calcareous algae build-ups are very essential for the development of coral reefs. In addition, when these coralline and calcareous algae tends to "stick" on landforms below the ocean surface, and as these life forms grows and continuously expands, they now form what we call "reefs."
Answer:
the awnser is A river basin
Explanation:
because I'm smart just trust me m8
Sediment is the answer from the knowledge i have and from what i found
It'll be much cleaner for the environment.
A) a common ancestor
Homologous structures are structures that are similar in related organisms. There is a basic pattern of bones which can be inherited from a common ancestor