EE Ch 15: Food and Agriculture

18 terms by SHSPASS

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Environmental Ecology

famine

a widespread and long-lasting shortage of food that may cause starvation

malnutrition

the results in the body of poor nutrition; undernutrition, overnutrition, or any nutrient deficiency

diet

the usual food and drink consumed by an organism (person or animal)

yield

the amount of food that can be produced in a given area

arable land

land that can be used to grow crops

topsoil

the surface layer of soil which usually has organic matter

erosion

the movement of rock and soil by wind and water

desertification

the gradual transformation of habitable land into desert

compost

mixture of decaying organic matter used as fertilizer

salinization

A process in which mineral salts accumulate in the soil, killing plants; occurs when soils in dry climates are irrigated profusely

pesticide

a chemical used to kill pests (as rodents or insects)

biological pest control

The use of certain organisms by humans to eliminate or control pests.

genetic engineering

a science of manipulating the genes of living things to instill some desirable trait not present in the original organism. An example is a tomato given a gene to delay its rotting.

domesticated

brought under human control; tamed or cultivated

overharvesting

catching or removing from a population more organisms than the population can replace

aquaculture

the raising of aquatic organisms for human consumption

livestock

domesticated animals

ruminant

any of various cud-chewing hoofed mammals having a stomach divided into four (occasionally three) compartments

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