Question

MyHC (“my-H-C”) genes are downregulated in this organism’s Short toes mutants. Myofibrils (“MY-oh-FYE-brils”) fail to organize in this organism’s cardiac mutants, which are used to study heart defects because they survive almost to hatching. Injecting iodine can stimulate this organism to undergo a process (10[1])it normally cannot (10[2])because it does not (10[1])endogenously produce thyroid-stimulating hormone. (10[1])The ALM assay performed in this organism established that nerve signaling, wound epithelium (“woond ep-ih-THEE-lee-um”), and the presence of cells from different axes (“AX-ees”) were sufficient for the regeneration of limbs. (10[1])While wild-types of these (10[1])neotenic (“nee-oh-TEN-ick”) amphibians (10[2])are olive-brown, (10[2]-5[1])captive (10[1])ones are commonly leucistic and pale (10[1])pink. (10[2])For 10 points, name this model (10[1])organism native to Mexico’s (-5[1])Lake Xochimilco (10[1])(“shoh-chee-MEEL-koh”), a salamander (10[1])with distinctive gill stalks. ■END■ (10[3])

ANSWER: axolotl [or Ambystoma mexicanum; prompt on salamanders until read; prompt on amphibians until read; prompt on Ambystoma]
<Biology>
= Average correct buzz position

Summary

2023 ACF Nationals04/22/2023Y21100%0%10%84.86

Buzzes

PlayerTeamOpponentBuzz PositionValue
Joelle SmartRutgers AVanderbilt A4110
Adam FineChicago APenn A4410
Rahim DinaImperial AUC Berkeley A4410
Sanjay SrihariGeorgia Tech BMinnesota B4810
Julian GatchSouth Carolina AWUSTL A5210
Conor ThompsonIowa State ANorth Carolina A8010
Jason HongBrown ANorthwestern A8410
Brad MacLaineTexas AWUSTL B8610
Connor BlakeChicago CDuke A8610
Shardul RaoMinnesota AHouston A8810
Steven YuanUC Berkeley BColumbia A8810
Yash MandaviaIllinois AMichigan A88-5
Jonathan LauJohns Hopkins AChicago B8910
Tracy MirkinFlorida AToronto A9510
Justin DuffyHarvard AMaryland A9610
Ben DahlPurdue AYale B9610
Grace LiuMIT AGeorgia Tech A10210
David BassVirginia ACornell A106-5
Michał GerasimiukYale AOhio State A10810
Drake EshlemanIndiana AColumbia B11010
Geoffrey ChenCornell AVirginia A11510
Todd MaslykMichigan AIllinois A11510
Rosa XiaCornell BNYU A11510