Unit 9 Biology

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Across
  1. 6. Aquatic regions where sunlight penetrates, able to support photosynthesis
  2. 8. Pockets ecosystems at the bottom of the ocean near divergent plant boundaries - producers in the ecosystem use chemosynthesis
  3. 10. Measurement of the variety and richness of an ecosystem, measured in parts by species richness, species evenness, and endemic species
  4. 12. Non-Native species in a community, are often able to outcompete endemic species because they are removed from the limiting factors they evolved with
  5. 14. When human population becomes so large they are not able to be supported by ecosystems - populations are higher than carrying capacity
  6. 16. Clearing forested land and repurposing it for non-forest use like agriculture, or urban development
  7. 18. Mature form of an ecosystem end result of biological succession
  8. 20. Long-term changes in average global temperatures causes changes in weather patterns - human interactions with ecosystems have accelerated this process
Down
  1. 1. Predictable changes in an ecosystem as it progresses from pioneer species on bare rock to a mature climax community - starts with no soil
  2. 2. Predictable changes in an ecosystem after a disturbance as it progresses toward reestablishing a mature climax community - some soil already exists
  3. 3. Collection of ecosystems characterized with similar temperatures, rainfall totals, and climax communities
  4. 4. Aquatic regions that do not have sunlight, unable to support photosynthesis
  5. 5. The introduction of harmful materials into the environment often from human sources
  6. 7. Species that evolve and are only found in one isolated geographic location - ex. Marsupials in Australia
  7. 9. A Visual representation of the feeding interactions in ecosystems - helps show interconnectedness among species
  8. 11. Key organism in an ecosystem that helps stabilize or maintain that ecosystem - ex. wolves in Yellowstone
  9. 13. Land ecosystems categorized by average temperature and precipitation - includes the tundra, grasslands, deserts, boreal forests, temperate forests, savannas, and tropical forests
  10. 15. Waterecosystems categorized by light availability, water depth, and salinity - includes intertidal areas, continental shelf, coral reefs, pelagic zones, benthic zones, photic and aphotic zones, and hydrothermal vents
  11. 17. Biomes where fresh and saltwater meet - typically very productive areas due to influx of nutrients from terrestrial ecosystems
  12. 19. First species to invade or populate an area, typically a lichen in primary succession