Alcohols
A. denature proteins when in a 50-95% alcohol-water solution.
B. are skin degerming agents.
C. at 50% or higher concentrations dissolve cell membrane lipids.
D. disinfect items when soaking method is utilized.
E. All of the choices are correct.
Answer: E
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Which of the following tissue type covers or forms the lining of all internal and external body surfaces?
A. muscle B. connective C. epithelial D. nervous E. hepatic
Endospores are
A. a dormant cell type. B. a form of reproduction. C. an obligate intracellular parasite. D. sensitive to damaging environmental conditions
In an aqueous environment, the phospholipids of a membrane ____
a. are arranged in a single layer b. are arranged in a bilayer with the polar heads of each layer located at the membrane surface c. are arranged in a bilayer with the fatty acid tails located at the membrane surface d. are arranged in a bilayer but the phospholipids have no specific orientation e. dissociate into their lipid and protein components
Based on DNA evidence, fossil evidence, homology, and vestigial structures, what do humans and chimpanzees share?
What will be an ideal response?