Chem quiz due in 15 mins pls help only 5 questions i will give brainliest answer

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

If a solution had a ph of 7 what is the solution

What is the atomic number of an atom that has 6 protons