Maintaining Biodiversity

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Across
  1. 2. A substance that pollutes something like the air, water, or soil in an ecosystem
  2. 4. Different organisms living in an ecosystem
  3. 6. Bees are an example of a __________ species because they are vital for ecosystem health
  4. 10. A scientist that studies humans' impact on ecosystems is called a __________ biologist
Down
  1. 1. A group of organisms that exchange genes through breeding
  2. 3. An organism that can serve as a warning signal for ecosystem health
  3. 5. A species that breaks down dead organisms
  4. 7. These usually only exist during low tide
  5. 8. Woolly Mammoths are _______ because there are none left
  6. 9. A community of interacting organisms