The zenk gene in the finch brain is activated by tactile stimuli

Indicate whether the statement is true or false.


ANS: F, acoustical

Biology & Microbiology

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Shewanella spp. show great metabolic flexibility and can use a variety of electron acceptors, including ________.

A. chromium and tellurite B. technetium and neptunium C. uranium and plutonium D. iodate and selnite

Biology & Microbiology

Four of the five answers listed below are

caused by recessive genes. Select the EXCEPTION.

a. achondroplasia. b. phenylketonuria. c. Tay-Sachs. d. hemophilia e. Duchenne muscular dystrophy

Biology & Microbiology

The structure that covers the opening to the trachea during swallowing, thereby preventing food from entering the air passageway, is the

A. epiglottis. B. cecum. C. rumen. D. uvula. E. soft palate.

Biology & Microbiology

Natural selection ________.

A. prepares organisms for future changes in the environment B. results in evolutionary adaptation C. is a very rare phenomenon D. does not affect allelic frequencies

Biology & Microbiology