Compared to cnidarians, bilaterally symmetrical animals have _____ nervous systems
A. simple
B. compound
C. specialized
D. no
C
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Using the Sanger method of DNA sequencing, results in the figure below are obtained following gel electrophoresis of the DNA fragments.
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A total of 21 nucleotides has been sequenced. What is the sequence of these nucleotides?
A) 5'-ACCGTTTGCAGAACGTTCCCA-3'
B) 5'-ACCCACGTTAAAGACCCGTTT-3'
C) 5'-AAAAACCCCCCCGGGGTTTTT-3'
D) 5'-ACCCTTGCAAGACGTTTGCCA-3'
E) none of the above
Similarity in evolutionarily unrelated groups due to adaptation to similar environments is called
A. concentric evolution. B. convergent evolution. C. biogeographic evolution. D. Hardy-Weinberg equilibrium.
Which structure is more advanced in this group than
in other reptiles? a. A b. B c. C d. D e. none of these
What is meant by signal amplification? Provide two examples. What will be an ideal response?