| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| In trees such as pines & firs, the seeds form in these | cones | $1,000 | J | NATURE | 2013-01-29 | #6532 | |
| The retina has about 75 to 150 million rods & only about 7 million of these receptor cells | cones | $600 | DJ | SCIENCE & NATURE | 1998-04-20 | #3151 | |
| The retinal cells used for night vision are rods, & these are used for reading & color perception | cones | $100 | J | SCIENCE & NATURE | 1990-07-09 | #1366 | |
| On spruces they hang straight down; on fir trees they stand straight up | cones DD | $1,000 | DJ | NATURE | 1986-09-16 | #462 |