Flatworms and mussels have cellular and extracellular fluids with osmolarity lower than that of the external
environment
Indicate whether the statement is true or false.
ANSWER: False - higher
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Which category of media can be described as containing one or more agents that are inhibitory to all organisms except those being sought?
a. Enrichment b. Supportive c. Selective d. Differential
Macroevolution is opportunistic, not goal oriented. Explain what this means.
What will be an ideal response?
Which of the following variations on translation would be most disadvantageous for a cell?
A) translating polypeptides directly from DNA B) using fewer kinds of tRNA C) having only one stop codon D) lengthening the half-life of mRNA E) having a second codon (besides AUG) as a start codon
Which of the following can carry out denitrification to completion?
A. Nostoc B. Nitrobacter C. Azotobacter D. Rhizobium E. Pseudomonas