What is the best way to test a hypothetical evolutionary classification among living organisms?
A) analysis of embryonic development
B) analysis of physical structures
C) analysis of DNA sequence
D) analysis of habitat
C
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When excess glucose is present in the human body, it gets stored as which of the following?
a. glucagon b. glycogen c. proteins d. fatty acids
The subunit of clathrin is__________
Fill in the blank(s) with the appropriate word(s).
In animal cells, hydrolytic enzymes are packaged to prevent general destruction of cellular components. Which of the following organelles functions in this compartmentalization?
a. chloroplast b. lysosome c. central vacuole d. peroxisome e. glyoxysome
Which of the following mechanisms is the most common by which penicillin resistance occurs?
a. prevention of penetration within the microbe b. ejection of the antibiotic by a pump mechanism c. alteration of the drug's target site or receptor d. inactivation of the drug by an enzyme