(Solved): Use the terms on the left to fill in the following sentences, which explore the effects of humans on ...

Use the terms on the left to fill in the following sentences, which explore the effects of humans on the biosphere. Over the last 2,000 years, the human population has grown exponentially. One example of how a growing human population is affecting the biosphere is habitat destruction, during which a native ecosystem is greatly altered for a human purpose. With a smaller habitat, resources are more limited, thereby reducing the ecosystem's carrying capacities for local populations. keystone species species richness migration rates exponentially Some populations may go extinct, changing the species richness (the number of species) within the ecosystem. Humans also harvest individuals from some populations faster than the surviving individuals can reproduce. This situation is called overexploitation. Declines in the population sizes of are especially damaging to the of an ecosystem.