Potential candidates for biological warfare
A) are generally gram-negative rather than gram-positive.
B) can be virtually any pathogenic bacterium or virus.
C) are eukaryotic rather than prokaryotic.
D) must be genetically engineered to be effective.
Answer: B
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The internal solute concentrations of osmoregulators are:
A. either higher or lower than the solute concentration of the external environment. B. similar to the solute concentration of the external environment. C. higher than the solute concentration of the external environment. D. lower than the solute concentration of the external environment. E. None of the answer options is correct.
Expressed sequence tags are nucleotide sequences derived from cDNA molecules.
Answer the following statement true (T) or false (F)
Gills are respiratory structures found in fish, nudibranch mollusks, and some amphibians
Indicate whether the statement is true or false
If a haploid cell goes through mitosis it will generate
a)two haploid cells. b)two diploid cells. c)four haploid cells. d)four diploid cells. e)This is not possible.