The signal from the environment that triggers a stereotyped behavior is a

A. reinforcing stimulus.
B. key stimulus (sign stimulus).
C. releasing mechanism.
D. fixed action pattern.
E. conditioned reflex.


Answer: B

Biology & Microbiology

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The observations you make and experimental data you collect in your biology laboratory class are

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Charles Yanofsky helped decipher the genetic code working with the ________ biosynthesis genes in ________.

A) leucine; Salmonella enteritidis B) phenylalanine; Klebsiella pneumoniae C) tryptophan; Escherichia coli D) glycine; Serratia marcescens

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Which of the following is NOT found in every

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An unprotected area of naturally occurring plant and animal assemblages that is surrounded by unsuitable territory due

to development or habitat destruction is referred to by biologists as: a. an island. b. ex situ conservation. c. a reserve. d. a park. e. a refuge.

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