You placed equal numbers of dark and light varieties of feeder crickets into a terrarium containing a
species of lizard. After two days you notice that the dark variety of the crickets was less common than
the light variety. What process is taking place on a small scale within the terrarium? Design an
experiment in which you would try to determine if color or taste is the primary factor responsible for
the selective feeding of the lizards What will be an ideal response?
Concepts to Consider: Natural selection, correct experimental design, and hypothesis testing.
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You isolate the DNA from a previously unknown virus and determine the melting point of the nucleic acid in the virus. What pattern, trace A, B, C, or D,would you expect if the virus DNA is single stranded?
A. trace A B. trace B C. trace C D. None of these traces represents the pattern forsingle-stranded DNA.
Quality control should be performed on which two organisms to determine the validity of the oxidase reagent?
a. S. aureus and S. epidermidis b. S. epidermidis and Enterococcus c. Aerococcus and Enterococcus d. Micrococcus and Aerococcus
Which groups of organisms are the most successful air breathing land invertebrates?
a. Frogs b. Snails c. Lobsters d. Spiders e. Birds
Which of the following provides taxonomic information that includes the information obtained in the others listed?
A) nucleic acid hybridization B) nucleic acid-base composition C) amino acid sequencing D) biochemical tests E) cladogram