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An example of logistic vs. exponential growth.

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Picture examples of some invasive species.

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Picture example of an Age Structure Diagram.

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Picture of examples of pollutants.

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On Exponential and Logistic growth in populations. (7.32 minutes)
https://www.youtube.com/watch?v=KyAKEisg2PQ

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Picture example of renewable and nonrenewable resources.

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Short Answer Questions (4):
1) Compare AND contrast logistic growth to exponential growth. Logistic growth starts rapidly, then slows down after reaching the carrying capacity, while exponential growth starts slow then picks up as the population increases. In exponential growth the resources are unlimited, and in logistic growth population expansion decreases as resources become scarce. They both model populations growth rates.
2) How can you tell that the growth curve your looking at is logistic or exponential? You can tell the curve is logistic if it has an S shape, and you can tell the curve is exponential if it has a J shape.
3) What is the difference between population density and population distribution? Population density is the number of organisms within a unit of space and population distribution is how organisms are spaced out within an area.
4) What are the factors that keep a population from growing further once its carrying capacity is reached? At the carrying capacity, competition for resources, predators, parasitism, disease, and other density-dependent factors keep the population from growing further.

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Some negative effects of Global Warming.

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Photo explaining biological magnification.

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Vocabulary Terms (10):
1) Geographic distribution- where and how many organisms are in a geographical area.
2) Density- the number of individuals per unit area.
3) Growth rate- the rate at which a population increases or decreases. Rate of births and deaths.
4) Exponential growth- when the individuals in a population reproduce at a constant rate.
5) Logistic growth- when a population's growth slows or stops following a period of exponential growth.
6) Limiting factor- a factor that limits the population from growing, or slows down the population from growing.
7) Invasive species- a non-native species that spreads and becomes abundant.
8) Biological magnification- concentrations of a harmful substance increase in organisms at higher trophic levels in a food chain or a food web.
9) Carrying capacity- the largest number of individuals of a population that a given environment can support.
10) Biodiversity- the sum total of the genetically based variety of all organisms in a biosphere.

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A real life scenario that is an issue we are currently faced with is global warming. Global warming has been having negative effects on people, freshwater, oceans, ecosystems, temperature, and populations. So far global warming has already caused loss of sea ice, accelerated sea level rise and longer, more intense heat waves. In ecosystems global warming has been causing temperature to rise, water shortages, an increase fire threats, and droughts.