Examlex
Discuss the operation of generalized reciprocity in hunter-gatherer societies. Why are hunter-gatherers so strongly oriented toward cooperation and sharing?
Chloroplasts
Organelles found in the cells of plants and other photosynthetic organisms, sites where photosynthesis takes place.
Carbon-14 Dating
A method for determining the age of an object containing organic material by measuring the levels of carbon-14, a radioactive isotope.
Neanderthals
An extinct species or subspecies of archaic humans who lived in Eurasia until about 40,000 years ago, closely related to modern humans.
Coexisted
Refers to the occurrence of two or more species, populations, or entities living together in the same environment at the same period in time.
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