Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

Which ocean is on the eastern coast of north and south america? arctic ocean indian ocean pacific ocean atlantic ocean