What is parallax? O A The distance to nearby stars
O
B. The apparent change in position of a nearby star when looked at from different plac
O C. The apparent change in position of a nearby star over time
O
D. The unit of measurement that describes the change in position of a star over time

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

Why do cells appear different in distilled water than they do in 10% salt water?