ecology

3. an organism that hunts, kills, and consumes other organisms
5. the variety of life on Earth at all levels,
8. a diagram that illustrates the interconnected feeding relationships
9. after being introduced to a new environment, establishes, spreads, and potentially causes harm to the environment
12. the movement and transformation of energy within and between organisms
13. only about 10% of the energy stored in one trophic level is transferred to the next level
15. sequence of organisms through which energy and nutrients are transferred as one organism consumes another.
17. an organism that can create its own food
18. the natural environment where an organism lives
19. the passive movement of water across a semi-permeable membrane
20. the total mass of living organisms, or organic matter, in a given area

1. an organism that can create its own food
2. an organism, such as bacteria or fungi, that breaks down dead organic matter
4. relates to nutrition and the feeding habits or food relationships of different organisms
6. has the same concentration of solutes as the cell's cytoplasm
7. the variation in the genetic makeup within a population
10. an animal that is hunted, killed, and eaten by another animal for food
11. illustrates the flow of energy through different trophic levels in an ecosystem,
14. an interaction between organisms or species where both require a limited resource
16. a simple sugar molecule