speciation - 2025 VAULT II

Packet 8: Bonus 6

An ancient hybridization event caused by the refilling of Lake Victoria rapidly sped up this process in Cichlid fish. For 10 points each:

[10e] Name this evolutionary process in which a population splits into two groups that can no longer breed.

ANSWER: speciation

[10h] A species of blind cichlids living in the Congo underwent this phenomenon. This phenomenon is the major driving force of evolution according to Kimura’s neutral theory..

ANSWER: genetic drift [accept bottleneck effect or population bottleneck]

[10m] Cichlids in Lake Victoria underwent this process. This process, which was observed in Darwin’s finches, involves a common ancestor rapidly diversifying into multiple species which occupy available niches.

ANSWER: adaptive radiation [prompt on radiation or evolutionary radiation]

<Science - Biology, Spencer Manning> | VAULT II Packet 08

Heard	PPB	E %	M %	H %
41	15.61	88%	42%	27%

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Conversion

Team	Opponent	Part 1	Part 2	Part 3	Total	Parts
Abbey Park	Northern	10	10	0	20	EH
Basileus II: Electric Boogaloo	With Less Than 2 Years of Combined Quizbowl Experience	10	0	10	20	EM
Bella Vista	Martingrove	10	0	0	10	E
Belmont A	Waltham B	10	0	0	10	E
Birmingham A	Southperial	10	0	0	10	E
Booz Allen Interns	PC Chris Master Race	10	0	10	20	EM
Burlington Trojans	Glebe	10	0	10	20	EM
Cambridge	Birmingham B	10	0	10	20	EM
Cary Academy	East Chapel Hill	0	0	0	0
Chapel Hill A	Tantaene Animis Caelestibus Irae	10	0	10	20	EM
Chapel Hill B	Grimsley	10	0	0	10	E
Chimera	Manchester A	0	0	0	0
Georgia A	California	10	0	0	10	E
Georgia B	North Carolina	10	0	0	10	E
Hoover	Exhibition	10	10	10	30	EHM
I have no buzzer and I must neg	They fuck you up your buzz and neg	10	0	10	20	EM
Innovation B	Lambert B	10	0	0	10	E
Lambert A	Chattahoochee A	10	0	10	20	EM
Leif Eriksen's Striking Appearance	Albanian Rift in the Sky	10	10	10	30	EHM
Lexington B	Lexington A	10	10	10	30	EHM
Michael Touse-Squid	Ostia Orcas	10	10	10	30	EHM
Midtown	Innovation A	10	0	0	10	E
Minnetonka A	Eden Prairie	10	0	0	10	E
Mountain Dew is Better	Armand duplantis fan club	10	0	0	10	E
New York	Texas B	10	10	0	20	EH
Northview A	Johns Creek	10	10	10	30	EHM
Northview B	Chattahoochee B	0	0	10	10	M
Not Just Biking	Hoya gonna stop the Fighting Irish?	10	10	10	30	EHM
Prat Pack	Always Set the Kurve	10	10	10	30	EHM
Renert	Cheese Sandwich	0	0	0	0
Sheffield A	Manchester B	10	0	0	10	E
Sheffield B	Edinburgh	10	0	0	10	E
Southampton	Bath	10	0	0	10	E
Taman's Nepo Babies	Don't Ever Take Sides Against the Family	10	0	0	10	E
Ted Offensive	Jeopardy Rejected Ibean Batutu	10	10	0	20	EH
Texas A	Georgia C	10	0	10	20	EM
The Young Jits	An even worse idea	10	0	10	20	EM
They'll Just Let Anyone Edit Chicago Open These Days	Virginia Tech	0	0	0	0
Waltham A	Belmont B	10	10	0	20	EH
Warperial	Oxford	10	0	0	10	E
Washington	Kentucky	10	0	0	10	E

Summary

Tournament	Edition	Match	Heard	PPB	E %	M %	H %
VAULT II at Georgia Tech	2026-01-24	✓	6	18.33	83%	67%	33%
Triangle Cup	2026-03-13	✓	3	10.00	67%	33%	0%
VAULT II at Eden Prairie HS	2026-03-13	✓	1	10.00	100%	0%	0%
VAULT II at McGill	2026-03-13	✓	4	12.50	75%	25%	25%
VAULT II at UCSB	2026-03-13	✓	4	22.50	100%	75%	50%
VAULT II Northern UK	2026-04-24	✓	3	6.67	67%	0%	0%
VAULT II Southern UK	2026-04-24	✓	4	12.50	100%	25%	0%
VAULT II at Harvard	2026-04-30	✓	3	20.00	100%	33%	67%
VAULT II at MINT	2026-06-19	✓	5	14.00	100%	20%	20%
VAULT II Stanford Online	2026-07-17	✓	8	18.75	88%	63%	38%