Read the statement and identify whether it is a Chemical Change, Physical Change, or Both. Answer the following questions Chemical (A), Physical (B) or Both (C). Eating and digesting cheese pizza.

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?