What do hammerhead sharks have in common with goldfish?
A. They both have a cartilaginous skeleton.
B. They both have a calcium-enforced skeleton.
C. They both have a lateral line system.
D. They both have an operculum.
Answer: C
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How does a tRNA know which amino acid to add to the growing peptide chain during translation?
a. The rRNA tells the tRNA which amino acid to bring to the ribosome. b. The DNA tells the tRNA which amino acid to bring to the ribosome. c. The codon on the tRNA and the anti-codon on the mRNA are complementary. d. The codon on the mRNA and the anti-codon on the tRNA are complementary.
Which of the following best describes diversity change through time in succession?
A) steady increase over time B) steady decrease over time C) starting and ending with high diversity D) highest diversity in middle successional stages
The MAC system is a group of proteins that supplements the inflammatory response. Indicate whether the statement is true or false
Which city is more likely to experience the largest temperature changes throughout an average year?
A) Chicago, Illinois B) Houston, Texas C) Albuquerque, New Mexico D) Nashville, Tennessee