Examlex
Every time I go to the grocery store,I purchase lottery tickets,but I have never won anything.If Skinner's theory is correct,what will eventually happen to my lottery-ticket-buying behavior?
Unique
Being the only one of its kind; unlike anything else.
Adaptation
The evolutionary process by which organisms become better suited to their environment, leading to changes in traits over generations.
Hollow Bones
Bones that are light yet strong, characteristic of birds, aiding in flight by reducing overall weight.
Bird
Endothermic reptile that has feathers and wings, is often adapted for flight, and lays hard-shelled eggs.
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