Bio 101 Chpt 1

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Mightyfawn
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126893
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Bio 101 Chpt 1
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2012-01-10 23:14:04
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Bio 101
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Bio 101 Chpt 1
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  1. Biology
    The scientific study of life
  2. Cell
    • The basic unit of an organism
    • Made up of 70% water and other materials
    • Have genes which produce proteins
  3. Organism
    • Living individual
    • Consists of one or more organisms
  4. Atoms
    a particle of matter; composed of protons, neutrons, and electrons
  5. Tissues
    A group of cells that perform a common function
  6. Organs
    • Two or more tissues that interact and function as an integrated unit
    • Ex. kidney and heart
  7. Organ Systems
    Different componets that peform
  8. Organisms
    • (The species)
    • Two or more physically or functionally linked organs
  9. Population
    Group of species
  10. Community
    Group of different species
  11. Ecosystem
    • The living and nonliving components of an area
    • Ex. The savanna
  12. Biome
    The interchange- refers to different ecosystems
  13. Biosphere
    • That portion of the earth and it's atmosphere where living organisms inhabit
    • which means the part of the earth that is alive
  14. What are the levels of Biological Organization?
    • Atom
    • Molecule
    • Organelle
    • Cell
    • Tissue
    • Organ
    • Organ system
    • organism
    • population
    • Community
    • ecosystem
    • Biosphere
  15. Emergent Properties
    • different components of an organism that interacts physically and chemically for complex functions
    • causes structural organization to be closley connected in order to function well.
  16. What are 8 characteristics of living organisms?
    • has a cell
    • respiration
    • reproduction
    • evolution
    • metabolism
    • excretion
    • homeostasis
    • growth
  17. Metabolism
    All the biochemical reatctions in a cell or living organism
  18. What are the 2 components of metabolism?
    • catabolism
    • anabolism
  19. catabolism
    • breakdown
    • Ex. respiration
  20. anabolism
    • building up (synthesis)
    • Ex. photosynthesis
  21. excretion
    getting rid of metabolic waste products
  22. What are the 3 main metabolic excretory products?
    • sweat (skin)
    • carbon dioxide (lungs)
    • urine (kidney)
  23. homeostasis
    • maintance of constant internal enviornment in an organism
    • Ex. maintance of glucose levels and osmoregulation
  24. osmoregulation
    regulating water in your body
  25. 3 major ...
    • osmoregulation
    • glucose balance
    • temperature
  26. Producers
    • They fix energy
    • called autotrophs (self feeders) b/c they produce their own food
    • mostly green plants
  27. Consumers
    • AKA heterotrophs
    • different kinds of feeding
    • They don't feed themselves, but they eat different kinds of organisms.
  28. Decomposers
    • break them down and return them to the ecosystems
    • mostly fungis and bacteria
  29. What are two ways reproduction occurs?
    • asexual reproduction
    • sexual reproduction
  30. asexual reproduction
    • Where there is no gametes (sex cells) Ex. sperms
    • Ex. Stem cutting, stemstem tubers, stems, and sugar cane
  31. sexual reproduction
    gamets involves
  32. What is the reproduction organ of a man?
    The tesis
  33. What is the reproduction organ of a woman?
    The ovaries
  34. Adaptation
    development of features for survival in a specific enviornment and passing them on to offspring through reproduction
  35. mutations
    heritable changes in genes and chromosomes
  36. speciations
    formation of new species
  37. natural selection
    survival of the fittest organisms selected by the environment b/c of special features for survival

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