Examlex
Carefully define the following terms and explain their importance to the study of economics.
a. Resources
b. Rational decision
c. Scarcity
d. Opportunity cost
Homo Habilis
An early species of human characterized by its use of stone tools, dating back to around 2.8 million years ago.
Brain Size
A measure of the volume or mass of the brain, often related to an organism's cognitive abilities, but not the sole determinant of intelligence.
Dentition
Refers to the development, arrangement, and number of teeth in animals and humans.
Homo Heidelbergensis
An extinct species of archaic humans that lived approximately 600,000 to 200,000 years ago, known for their large braincase and robust build.
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