| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Off the coast of California, this brown seaweed can grow almost a foot a day | kelp DD | $3,000 | DJ | MARINE BIOLOGY | 2011-06-02 | #6164 | |
| As the Beagle sailed through the Strait of Magellan, Darwin noted the forests of this under the water | kelp | $800 | DJ | MARINE LIFE | 2007-01-19 | #5150 |