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concept – n. an idea of what something is or how it works
inefficient – adj. not capable of producing the desired results without wasting time and energy
culture – v. the beliefs, customs, arts of a particular group of people
induce – v. to cause something to happen next
hormone – n. a natural substance that is produced in the human body and determines how the body grows and develops
arable – adj. suitable for farming
yield – v. to produce something, such as crops
scale – v. a range of levels from low to high
photosynthesis – n. the plant process of deriving nutrients from the sun
artificial – adj. not real, not alive
