A farmer interested in the quality of the soil in her field might use which aspect of soil as a quick indicator of the field's overall fertility?

Deterioration of the soil's fertility and ability to provide ecosystem services is called

your friend tells you he's decided not to use pesticides or synthetic chemicals on his farm; instead he'll rely on composting and biological pest control. She is practicing

One of the biggest problems of pesticide use is the fact that

Eating a lot of meat is inefficient because _____ is LOST in transfer between trophic levels

A farmer has an infestation of aphids so he introduces ladybugs, which prey on aphids. He also uses a small dose of pesticide because there are just too many for the ladybugs to eat them all. The farmer's approach to insect pests is

Genetic engineering relies on placing a gene from one organism that codes for a desired trait into the _____ of a different organism

Because of the green revolution, between 1961 and 2008, food production

Industrial food production includes

One proven risk of genetically modified crops is

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