This gives them the ability to fly. Solid bones would be to heavy for flight.<span>
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Answer:
the last one is right I think
Answer:
A. The allele frequencies in a population have changed.
Among the ones listed above, the statement that best describes the way that the periodic table is arranged is "<span>The nonmetals are grouped together, which the exception of hydrogen.</span>" It can be seen that all of the nonmetals are placed on the far right of the periodic table except for hydrogen. They do not belong in a single column and are separated from the metals by the metalloids. Moreover, the elements are placed in the periodic table in increasing atomic number.