Ecology & Spiral Crossword Puzzle

4. How the body tries to keep itself the same on the inside even when things change on the outside
7. An organism that gets its energy by eating secondary consumers
8. Living parts of an ecosystem
12. An organism that consumes only plants
13. A sequence of living things in which each one feeds on the living thing below it.
15. An organism that must consume other organisms for nutrients
16. A living thing (almost always a plant) that takes energy from the sun and make its own food.
19. The force put out by the water in a plant against the cell wall
20. The role a species has in its environment
24. Your body’s outer layer
26. The growth response of a plant to touch
27. The growth response of a plant to water
28. An animal that only eats other animals and bugs

1. 90% of captured energy is transformed into heat in the previous trophic level and only 10% is available for the next trophic level.
2. An animal that consumes plants, animals, and bugs
3. Organisms such as bacteria and fungi that break down the remains of dead plants and animals, without need for internal digestion
5. An animal that eats primary consumers (i.e., other animals that eat plants)
6. The science of the relationships between organisms and their environment
9. The growth response of a plant to gravity
10. The growth response of a plant to light
11. A network of glands that secrete hormones into the blood
13. A food web is a model made of intersecting food chains.
14. An organism that gets its energy by feeding on producers in the food chain
17. The position an organism occupies on the food web
18. Living things that break down dead and decaying organisms. The most common decomposers are bacteria and fungi.
21. A system compromising all the biotic and abiotic factors in an area and all the interactions among them
22. The natural environment where a species lives
23. A diagram that shows the total amount of energy contained within each trophic level
25. Nonliving parts of an ecosystem