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McREL Benchmarks Below (Click here to compare with state standards.)
| Click here for Science Friday Kids' Connection Resource Pages linked to this benchmark. | McREL Benchmark 1. Knows that all individuals of a species that exist together at a given place and time make up a population, and all populations living together and the physical factors with which they interact compose an ecosystem (benchmark details) |
| Click here for Science Friday Kids' Connection Resource Pages linked to this benchmark. | McREL Benchmark 2. Knows factors that affect the number and types of organisms an ecosystem can support (e.g., available resources; abiotic factors such as quantity of light and water, range of temperatures, and soil composition; disease; competition from other organisms within the ecosystem; predation) (benchmark details) |
McREL Benchmarks Above (Click here to compare with state standards.)