Species of Bacillus produce bacitracin and the polymyxin drugs.
Answer the following statement true (T) or false (F)
True
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Microbial activity generates methylmercury, which is much less toxic than the mercuric ion
Indicate whether the statement is true or false.
If the side chains of amino acids contain the ammonium ion, they readily form ions that
A. are described as acidic amino acids. B. give positive electric charges to the amino acid. C. are described as basic amino acids. D. react with lipids to form lipoproteins. E. give positive electric charges to the amino acid AND are described as basic amino acids.
Members of the ____ Cnidarian lineageexist primarily as cube-shaped medusae, are active swimmers, and produce
one of the deadliest toxins made by animals.
a. Hydrozoa b. Scyphozoa c. Trematoda d. Cubozoa e. Anthozoa
Steroids are among the lipids with no _____
a. double bonds c. hydrogens b. fatty acid tails d. carbons