Estimation of Population Growth By Counting Offspring: Seed Multiplication
Learners calculate the reproductive rate of a plant that creates multi seed fruits. They graph exponential growth and the complete a series of questions that help them infer that natural selection processes are at work in this population.
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Population Ecology: The Texas Mosquito Mystery
While 80 percent of people with West Nile Virus show no symptoms, in severe cases, it causes death by infecting the membranes around the spinal cord and brain. The video starts by making population ecology relevant. It includes density...
12 mins 7th - 12th Science