Environmental Science
What is meant by ex-situ conservation?

Conservation of a species by protecting its habitat along with all other species living there
Conservation of forest eco system
Conservation of plants
Conservation of a species outside its natural habitat

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Environmental Science
A food web is

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

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