science crossword

3. a visual that shows the network of food chain.
5. the point when seawater retreats to its lowest level during a tide cycle
6. all of the members of a species within a particular area
7. organisms that break down organic waste for nutrients.
8. a community of different species that depend on interacting with each other and their physical environment for survival
9. the point when seawater rises to its highest level during a tide cycle
11. the region of land that is covered and uncovered by water between high and low tides
12. marine animals with organs that gather energy by straining nutrients and small organisms out of the water
15. small tubes on the mouth-side of a sea star that it uses to move and to grasp surfaces or prey

1. organisms that eat other organisms
2. Organisms that gets energy from the sun.
4. anything that can cause harm to an ecosystem (e.g., pollution, deforestation, invasive species, overhunting, climate change)
10. an organism that eats other organisms for energy
13. the alternating rise and fall of the sea with respect to land
14. a predatory animal with five or more rays (arms) extending from a central disc
16. the study of living things in their natural environment