Question 6 of 10
2 points
the primary structure of a protein refers to the sequence of amino acids that
are linked together in a long chain. which of the following common items
would best represent the primary structure of a protein?
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a. a burning wax candle placed in front of a small fan
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b. a dry kitchen sponge sitting beneath a mound of table salt
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c. beads of different colors joined together on a piece of string
d. two unsharpened pencils held together by a piece of tape

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.