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Middle School Life Science Review
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Middle School Life Science Review
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25 Questions

1. An organism on which a parasite lives.

2. The process of change that occurs during an organism's life to produce a more complex organism
Image: develop

3. Breaking down food
Image: digest

4. Visual graphic used to explain the trophic levels and how energy moves in an ecosystem
Image: Energy Pyramid

5. Information about past life, including the structure of organisms, what they ate, what ate them, in what environment they lived, and the order in which they lived.
Image: fossil record

6. Tiny hairlike organelles that sweep back and forth to help some microscopic organisms move.
Image: flagella

7. A relationship between two species in which both species benefit
Image: Mutualism

8. What is the nail and the nail bed and its edges called
Image: lunula

9. One set of stages from producer to consumers to decomposer; one path in a food web
Image: Food Chain

10. Organisms that eat only plants
Image: Herbivore

11. A system formed by the interaction of organisms (biotic) with their physical (abiotic) environment
Image: Ecosystem

12. The land area that supplies water to a river system.
Image: Watershed

13. A flower structure that encloses and protects ovules and seeds as they develop.
Image: ovary

14. A fossil formed when an organism buried in sediment dissolves, leaving a hollow area.
Image: mold

15. The remains of an organism that have turned into stone.
Image: petrified fossil

16. An organism's particular role in an ecosystem, or how it makes its living.
Image: Niche

17. A type of rock that forms when particles of rocks, plants or animals remains are pressed/cemented together
Image: sediment

18. Digestive organ where most chemical digestion and absorption of food takes place
Image: small intestine

19. The combination of a fungus and either an algae or an autotrophic bacterium that live together in a mutualistic relationship
Image: lichen

20. Absorbs water and forms feces
Image: large intestine

21. The number of deaths in a population in a certain amount of time
Image: Death rate

22. The likelihood that a particular event will occur
Image: probability

23. Outer layer of skin
Image: epidermis

24. An organism that obtains energy by feeding on other organisms
Image: Consumer

25. A muscle that is not under conscious control.
Image: involuntary muscle

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