__ Babies Are Produced by in-Vitro Fertilization
Puzzle 16 of Groups of Three Easy Pack
Question is: __ Babies Are Produced by in-Vitro Fertilization
and the answer is: TESTTUBE
Word Meaning:
TEST TUBE — (chemistry) A glass tube, rounded at one end and open at the other, used for small-scale laboratory tests.
Definitions from Wiktionary.