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6th Grade 1st Semester Exam Review Name:______________________ Science Skills: 1. What are the main steps in the scientific process? (SS2) Chapter 1: An Overview of Life 2. Biology is the study of living things and the processes that keep them alive. There are dominant ideas or themes that occur in biology that provide unity. What are the unifying themes of biology? (16) 2. How are living things organized? (20) 3. Living things interact with each other. Explain: Interdependence (21) Homeostasis( 21) 4. Define: (23) Microevolution: Macroevolution (23) Page 1 of 6 5.Define: (glossary of 26-28) species populations communities ecosystems Biomes biosphere 6. Ecologists have identified how organisms react. Define: (glossary of p. 30) mutualism commensalism parasitism predation Page 2 of 6 7. What is the difference between primary and secondary ecological succession? (31-32) 8. Explain why each cycles if importance: (34-38) Carbon cycle: Nitrogen cycle: Water cycle: Seasonal cycle: Chapter 2: How Cells Are Alike and Different: 9. Give the 3 main ideas of the cell theory> (50) * * * 10. What is the difference between unicellular and multicellular organisms? (52) Page 3 of 6 11, What is the job of the: (p. 52 or glossary) Cell membrane? cytoplasm? 12. Cells have complex transportation systems. Explain; (glossary or p. 54) diffusion: osmosis: passive transport: active transport: 13. What is the difference between a prokaryotic cell and a eukaryotic cell? 14.How does the ratio of surface area to volume help the to do its work? (59) 15. Describe the function of each of the following cell organelles: nucleus: nucleolus: Page 4 of 6 Chromatin: ribosomes: Endoplasmic reticulum: Golgi apparatus: vacuole: mitochondria; Chloroplasts: vesical: Lysosomes: 16. What is the process of photosynthesis? (72) 17. What is cell respiration? (75) Chapter 3: How Cells Function 18. Describe the structure of DNA (88-89) Page 5 of 6 19. What is the cell cycle? What does it create? (100) 20. How are proteins released into the blood? (102) 21. What do hormones do to influence your body activities? Page 6 of 6