Outside the protein sheath, many viruses have a(n) ________ made of protein, lipid, and carbohydrate.
Fill in the blank(s) with the appropriate word(s).
envelope
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Heavy metals are effective antimicrobial agents but are not widely used because of their high toxicity to humans.
Answer the following statement true (T) or false (F)
Suppose you use a match to ignite a sheet of paper from your notebook, and allow the fire to continue until the burning stops
If you could measure all the energy in the resulting ombustion products, and all the energy in the heat released (including whatever increase in disorder has occurred), would you predict this amount to be more than, less than, or the same amount as the amount of potential energy in the starting sheet of paper? (You should ignore the activation energy provided by the match to light the paper.) A. more energy than the paper B. less energy than the paper C. the same energy as the paper
Common megaplankton of the open ocean include all but
a. cnidarians. b. mollusks. c. gelatinous zooplankton. d. diatoms. e. salps.
A pigment that absorbs red and blue light and reflects green light is
A) xanthophyll. B) phycocyanin. C) chlorophyll. D) carotenoid. E) melanin.