A student brings you an animal to identify. It has a cephalothorax and no antennae. You would place it
in subphylum:A.
Crustacea.
B. Myriapoda.
C. Hexapoda.
D. Chilicerata.
E. Hirudinea
D
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To be able to sequence everyone's genome, we need new technologies that will (select all that apply)
A. reduce cost. B. increase sequencing speed. C. eliminate gel electrophoresis. D. eliminate PCR. E. improve the accuracy of Southern blot analysis.
Which of the following converts nitrogenous waste from living animals or from the remains of dead animals into NH4+ by certain bacteria and fungi?
a. Nitrogen fixation b. Nitrification c. Denitrification d. Ammonification
Which of the following is a common soil anion?
A) NH4+ B) Ca2+ C) NO3- D) Mg2+
Which statement concerning neurotransmitter release at the effector is true?
a. Preganglionic parasympathetic neurons release serotonin. b. Preganglionic sympathetic neurons release norepinephrine. c. Postganglionic parasympathetic neurons release norepinephrine. d. Postganglionic sympathetic neurons release acetylcholine. e. Postganglionic sympathetic neurons release norepinephrine.