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Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.
-6th term is -17; 15th term is -53
Ultimate Cause
A term referring to the evolutionary explanations for why a biological trait or behavior occurs, focusing on survival and reproductive advantages.
Graylag Goose
A species of large grey goose, native to Europe and Asia, known for its significant role in studies of animal behavior, especially imprinting.
Sign Stimulus
A specific external sensory stimulus that triggers a fixed action pattern in an animal.
Innate Releasing Mechanism
A neurobiological process or mechanism that triggers an innate behavior in response to specific environmental stimuli.
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