2. Which of the following statements is true?
a) All triacylglycerols and all phosphoacylglycerols have the same fatty acids in them.
b) All triacylglycerols have the same fatty acids, but the fatty acids in phosphoacylglycerols vary.
c) The fatty acids in triacylglycerols vary, but all phosphoacylglycerols have the same fatty acids in them.
d) The fatty acids in both triacylglycerols and in phosphoacylglycerols vary.

d) fatty acids in both triacylglycerols and in phosphoacylglycerols vary.

Explanation:

Triglyceride is defined as an ester derived from three (tri- and glyceride) fatty acids and glycerol. Triglycerides, as well as vegetable oil, are the primary components of body fat in humans and other vertebrates.

Phosphoacylglycerols are glycerol triesters in which one group of -OH is esterified with phosphoric acidand and two groups of -OH are esterified with fatty acids, which is then esterified into an alcohol . Phosphoacylglycerols have a configuration of "head and two tails," and are major components of cell membranes.

Hence, the correct statement is d) fatty acids in both triacylglycerols and in phosphoacylglycerols vary.

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stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms