Messenger RNA is single-stranded
Indicate whether the statement is true or false
TRUE
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The bond in table salt (NaCl) is
a. polar. b. ionic. c. covalent. d. double. e. nonpolar
Gomphoses
What will be an ideal response?
Comparing the evolution of domesticated dogs to the evolution of wolves over the same time period illustrates what relationship between artificial and natural selection?
A. Artificial selection is more likely to produce maladaptive structures than natural selection. B. Artificial selection cannot produce changes as large as changes produced by natural selection. C. Artificial selection is reversible; natural selection is not. D. In artificial selection, the magnitude of the selection pressure can be varied; in natural selection, it cannot. E. Artificial selection is slower than natural selection.
An environmental testing laboratory is unable to identify a single-celled organism isolated from a well water sample. Inspection of the microorganism with a compound microscope reveals that it uses pseudopodia for movement and is not enclosed within a mineral shell. Based on this information, this organism can be classified to which supergroup?
A. Opisthokonta B. Alveolata C. Amoebozoa D. Excavata E. Rhizaria