Density-dependent factors include disease, competition, and predation. Density-dependant factors can have either a positive or a negative correlation to population size. With a positive relationship, these limiting factors increase with the size of the population and limit growth as population size increases.
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Coolers, Ice Chests in the US, Chillybins in New Zealand, Ice Boxes in Australia, these are just some of the words people use to describe insulated containers that are used to keep your food and drinks cold .