end of unit quiz answers for unit 4 and other review items

Here are the end of unit practice quiz answers:

1) C;  2) D;  3) C;  4) C;  5) C;  6) D;  7) B;  8) A;  9) D;  10) C;  11) D;  12) C;  13) E;  14) A;  15) B

Here's the parts of the eye and ear worksheet.