Examlex
Which group of protists includes photosynthetic, unicellular, freshwater organisms that possess eyespots?
Natural Selection
The principle that inherited traits that better enable an organism to survive and reproduce in a particular environment will (in competition with other trait variations) most likely be passed on to succeeding generations.
Conditioned Reinforcers
Stimuli that acquire their reinforcing power through their association with primary reinforcers.
Biological Constraints
Limitations on learning that result from the genetic and biological makeup of each organism.
Pigeon
A bird of the family Columbidae, known for its distinctive cooing sound and often associated with peace or as a common urban wildlife species.
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