Living systems have internal regulation without fixed goals. Problems develop when we try to understand cells, organisms and communities in human terms and expect them to have the set goals or end points we associate with running a business or city. Predictable patterns are not caused by goal orientation. Negative feedback loops are a key to the regulation of nature. Resource use a.
Humans are the only biosystem that uses nonrenewable essential resources.
Natural populations that have nonrenewable essential resources become extinct. D. Control of living systems by the physical environment 1. Response of the individual. The range of tolerance of organisms to environmental conditions. The response of populations to environmental gradients.