Which of the following is a true statement? Often, fossil remains of a large complex animal are complete.
Often, fossil remains of a small simple animal are complete.
Often, fossil remains of a large complex animal are incomplete.
Often, fossil remains of a small simple animal are incomplete.

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Explanation:

answer: i would say b.

explanation:

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.