Define sex linked traits and explain how they are different from complete dominance

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false

Which atmospheric later is where earths northern and southern lights occur

Are humans interfering with or a part of evolution happening today? find examples of evolution seen in recent history that could be caused by human activity.