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STAAR Review

STAAR Review. Category 4 Students demonstrate an understanding of the structures and functions of living organisms and their interdependence on each other and their environment. Vacuole (storage) Cell wall Mitochondrion Chloroplast Nucleus Cytoplasm Cell membrane. Animal cells.

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STAAR Review

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  1. STAAR Review Category 4 Students demonstrate an understanding of the structures and functions of living organisms and their interdependence on each other and their environment.

  2. Vacuole (storage) Cell wall Mitochondrion Chloroplast Nucleus Cytoplasm Cell membrane Animal cells mitochondria nucleus vacuole cell wall cytoplasm cell membrane chloroplast Animal vs. Plant Cells Plant cells

  3. Organization of Living Things • Cells • Tissues • Organs • Organ systems • Organisms • Populations 7.12C

  4. What's the Function? • Circulatory • Transport food & oxygen to cells • Transport waste products from cells • Respiratory • Provide oxygen to the blood • Remove carbon dioxide from the blood • Skeletal • Support, protection, and movement 7.12B

  5. What's the Function? • muscular • Body Movement • Movement of blood and food • digestive • Break down food to nutrients • Deliver nutrients to circulatory system • excretory • Remove wastes from the body including excess water 7.12B

  6. What's the Function? • reproductive • Pass genetic information to offspring • Continue the species • integumentary (skin) • Protection • Reduce water loss • nervous • Process information & send instructions 7.12B

  7. What's the Function? • endocrine • control homeostasis • regulate bodily functions like metabolism • control growth • Control development • reproduction 7.12B

  8. Reproduction • Inherited traits controlled by _1?_. • Found in _2?_, located on _3?_ found within the _4?_ of a cell. • Asexual vs. sexual • Which creates more diversity?

  9. Photosynthesis… Light+CO2+H2O C6H12O6 + O2 8.5D,E,F; 6.9C

  10. Energy Flow through Living organisms.. • Sun producers  primary consumers  secondary consumers • Food chains • Food webs… • decomposers 7.5C

  11. Texas Food Web Which of these are producers? Which of these are primary consumers? Which of these are secondary consumers? Which of these are tertiary consumers? 7.5C

  12. Question • Which organisms are both secondary and tertiary consumers in this partial desert food web? 7.5C

  13. Interactive Food Web Click the link above to start… Direction are on the web site. • Part I: • Part II:

  14. Question • Flowers in a vase have enough turgor pressure to look fresh. If they lose turgor pressure, they become wilted. How is turgor pressure maintained? A. air is pumped into flowers B. water moves into cells C. minerals turn to crystals D. more sugar is produced E. water is pumped out of the cells F. more sugar is consumed B. water moves into cells 7.12F

  15. Biotic Living Plants Animals Decomposers Abiotic Non-living Water Soil Rocks Air Light Ecosystem Factors 8.11B

  16. Discussion • Given two organism that consume the same things in aa forest ecosystem, what would happen to the organisms if a drought caused a major loss of trees? 8.11C

  17. Succession • What is it? • series of predictable changes in a community that occur over time • Begins on new land such as a volcanic island • After major event: volcanic eruption, fire • 2 types • Primary: start with no ecosystem existing; 1st—pioneer species (lichens & mosses) then grasses, shrubs and finally trees • Secondary: occur after a disturbance such as farming or logging; regrowth of grasses, shrubs, small then larger trees 7.10C

  18. Succession Types of catastrophes: • volcanic eruption • forest fire • deforestation • land cleared for agriculture 7.10C

  19. Organism Structures A dichotomous key to these six species is shown. Complete the missing information for sections 5.a. and 5.b. so that the key is complete for all six species. 7.11A

  20. Organism Structures Using the dichotomous key, classify an organism that has small or no wings, shorter rear legs, not a horned head and small eyes. 7.11A

  21. Explain the Relationships • Producer — Consumer • Predator — Prey • Parasite — Host 8.11A

  22. Organisms & Environmental Change • Polar bears are dependent on sea ice to hunt seals and to move from one area to another. • What might happen to the polar bears if global climate change continues? 8.11C

  23. Differentiate between Natural Selection & Selective Breeding • Both are ways traits are passed from parent to offspring • Natural Selection • Referred to “survival of the fittest” • Only the most adapted organisms live to pass on their genes • Peppered moth and air pollution • Selective Breeding • Human controlled • We physically breed for the traits we WANT in the offspring • dairy cows 7.11C

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