Which of the following is NOT a logical hierarchy of biological organization?
a. cells, tissues, organs, organ systems, organisms
b. family, order, class, phylum, kingdom
c. cells, molecules, organelles, tissues, systems
d. molecules, cells, tissues, organ systems, populations
e. organisms, populations, communities, ecosystems, biosphere
C
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Acute bacterial endocarditis differs from subacute bacterial endocarditis in the
A. suddenness and severity of onset. B. population affected. C. resultant damage. D. development of exotoxin shock.
Starting translation at the authentic (correct) start codon is essential for translation of the correct polypeptide
Errant translation starting at the wrong codon, or even at the wrong nucleotide of the start codon, may produce an abnormal polypeptide and result in a nonfunctional protein. Compare and contrast the mechanisms used by bacteria and eukaryotes to identify the authentic start codon during translation initiation.
If a DNA sample were composed of 10% thymine, what would be the percentage of guanine?
A) 10 B) 40 C) 80 D) It is impossible to tell from the information given.
Granulocytes are which type of cell?
A) lymphocyte B) erythrocyte C) megakaryocyte D) leukocyte