1. amount produced or income earned.   refraction   yield   magnitude   insomnia   Hint Half-n-half Clue   2. combining elements to produce whole system.   synthesis   incline   refraction   vertex   Half-n-half Clue   3. sameness or consistency.   inconsistency   log   turbulence   uniformity   Half-n-half Clue   4. tool for pounding or grinding in a mortar.   slag   pestle   spectrum   symbiosis   Half-n-half Clue   5. vertebrate animal whose female suckles the young.   quagmire   mammal   plasticity   nomenclature   Half-n-half Clue   6. marsh or soft and wet land.   quagmire   nutrient   spectrum   suture   Half-n-half Clue   7. animal with four feet.   quadruped   repulsion   iota   quagmire   Half-n-half Clue