What are the three main functions of the brain?

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Number and variety of living organism; includes genetic, species, and ecological types

Which plate boundary causes plates to collide forming mountain ranges, volcanoes, and island arcs? give an example of this type of plate boundary. 2. at which plate boundary do rifts and mid-oceans ridges form? give an example of this type of plate boundary. 3. at which plate boundary do plates slide past each other while moving in opposite directions? give an example of this type of boundary.