Provides food for grazing and browsing animals without plowing and planting.
Is plowed, planted, and harvested to provide forage for animals.
The farming of food in aquatic habitats.
The farming of ocean fish.
An ecosystem created by agriculture.
The planting of large areas with a single species or even a single strain or subspecies in farming.
A series of different crops planted successively in the same field, with the field occasionally left fallow, or grown with a cover crop.
The single requirement for growth available in the least supply in comparison to the need of an organism.
A chemical element required by all living things in relatively large amounts.
A chemical element required in small amounts by at least some forms of life.
When the change in availability of one resource affects the response of an organism to some other resource.
Name attached to post-World War II agricultural programs that have led to the development of new strains of crops with higher yield, better resistance to disease, or better ability to grow under poor conditions.
Farming that is more "natural" in the sense that it does not involve the use of artificial pesticides.
Genetically modified crops (GMCs)
Crop species modified by genetic engineering to produce higher crop yields and increase resistance to drought, cold, heat, toxins, plant pests, and disease.