Environmental Science
A food web is

Like a food chain
A set of interconnected food chains, illustrating the tropic relationships among species
The set of prey species that are consumed by animals in an ecosystem
The tropic (feeding) levels that can be observed in an ecosystem

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Environmental Science
Ecology is

The study of the environment in the absence of humans
The study of the relationships between organisms and their environment
The science that studies the evolution of life,
Integrates both social and natural sciences to help us understand how the earth works,

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