1. equal day and night; time at which sun crosses equator.   correlation   die   equinox   homeostasis   Hint Half-n-half Clue   2. unit for measuring weight of gems and purity of gold.   dichotomy   fauna   cartographer   carat   Half-n-half Clue   3. substance producing condition of no sensation.   imbalance   degradation   converse   anesthetic   Half-n-half Clue   4. plants of a region.   centrifuge   flora   catalyst   conduit   Half-n-half Clue   5. state of being motionless.   immobility   emetic   chameleon   antiseptic   Half-n-half Clue   6. post-mortem or examination of dead body.   carat   conjecture   autopsy   anesthetic   Half-n-half Clue   7. tree bearing fruit-cones.   degradation   anesthetic   conifer   chisel   Half-n-half Clue