Today in class we finished the Backwards Predator Prey information from last time and explained what Limiting Factors are. They are anything that, whether present or absent, limits growth in an ecosystem. We created a large list of things that would be considered limiting factors such as water, soil nutrients, plant population, pollution, temperature, sun, ect. We then divided that list into abiotic or biotic factors. Abiotic is anything non-living in an ecosystem such as water. Biotic is anything living in an ecosystem like the things in our food chain. Once we did this we started on the Brine Shrimp lab biology_-_brine_shrimp_ecology.docx. You will create a control ecosystem for the Brine Shrimp and one ecosystem in which a factor is changed whether Biotic or Abiotic. We will continue to monitor these micro-ecosystems next time as we discuss factors and variables.
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October 2019
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