Packet 10: Bonus 9
The “fidelity hypothesis” suggests that this substance contains secondary metabolites such as alkaloids to repel inefficient visitors. For 10 points each:
[10m] Name this substance that is produced by modified receptacles or “spur” glands and is “robbed” by corolla-piercing birds of the genus Diglossa. Artificial versions of this substance may be dyed red to attract trochilids.
ANSWER: nectar [accept nectar robbery or nectar larceny; accept floral nectaries or extrafloral nectaries or nectar spurs; prompt on sugar water; reject “pollen”] (Flowerpiercers belong to the genus Diglossa. Trochilids are hummingbirds.)
[10e] Nectar robbers cheat this behavior. Long-nosed bats, hummingbirds, and butterflies perform this action, in which a certain grainy substance is transferred from stamens to carpals.
ANSWER: pollination [or word forms of pollinate, pollinators, or pollenizers; accept zoophily; prompt on fertilization]
[10h] While pollinators may be attracted by floral synomones (“SIGH-no-moans”) that mimic sex pheromones, nectar robbers may detect these semiochemicals that benefit the receiver at the expense of the producer.
ANSWER: kairomones
<Editors, Biology> | S. Playoffs 10 (Editors 10)
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 24 | 14.17 | 100% | 42% | 0% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| British Columbia | Toronto B | 0 | 10 | 0 | 10 | E |
| Brown | Swarthmore | 10 | 10 | 0 | 20 | ME |
| Cambridge | UCLA | 0 | 10 | 0 | 10 | E |
| Chicago A | Northwestern A | 10 | 10 | 0 | 20 | ME |
| Chicago B | UCF | 0 | 10 | 0 | 10 | E |
| Columbia A | Stanford A | 0 | 10 | 0 | 10 | E |
| Harvard | NYU A | 10 | 10 | 0 | 20 | ME |
| Illinois B | Georgetown | 0 | 10 | 0 | 10 | E |
| Indiana | UC Berkeley B | 10 | 10 | 0 | 20 | ME |
| Maryland B | Cornell | 10 | 10 | 0 | 20 | ME |
| Michigan | Georgia Tech A | 10 | 10 | 0 | 20 | ME |
| Minnesota | Pittsburgh | 0 | 10 | 0 | 10 | E |
| NYU B | Georgia Tech B | 0 | 10 | 0 | 10 | E |
| North Carolina | Purdue | 0 | 10 | 0 | 10 | E |
| Ohio State | Johns Hopkins | 0 | 10 | 0 | 10 | E |
| Rutgers | Bruin | 10 | 10 | 0 | 20 | ME |
| Stanford B | Columbia B | 0 | 10 | 0 | 10 | E |
| Texas | Illinois A | 0 | 10 | 0 | 10 | E |
| Toronto A | Maryland A | 0 | 10 | 0 | 10 | E |
| UC Berkeley A | Virginia Tech | 10 | 10 | 0 | 20 | ME |
| Vanderbilt | MIT | 0 | 10 | 0 | 10 | E |
| Virginia | Penn State | 10 | 10 | 0 | 20 | ME |
| WashU | Georgia Tech C | 10 | 10 | 0 | 20 | ME |
| Waterloo | Northwestern B | 0 | 10 | 0 | 10 | E |
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| Main Site | 2026-04-17 | ✓ | 24 | 14.17 | 100% | 42% | 0% |