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TLS Online TPP Program

#Question id: 11471

Hair cells in the vertebrate ear are responsible for transducing sound pressure waves. Ion channels in the hair cell membrane open when ________.

#Unit 7. System Physiology – Animal

  1. a chemical ligand binds to the ion channel

  2. light is absorbed by a molecule in the membrane

  3. the cell membrane reaches a threshold voltage

  4. the membrane is distorted mechanically
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TLS Online TPP Program

#Question id: 18594

#Unit 11. Evolution and Behavior

Rapid development of angiosperms during___
TLS Online TPP Program

#Question id: 18595

#Unit 11. Evolution and Behavior

Which animal reptiles exist in the Permian periods of Paleozoic era?
TLS Online TPP Program

#Question id: 18596

#Unit 11. Evolution and Behavior

First toothed birds appear in which geological time periods?
TLS Online TPP Program

#Question id: 18597

#Unit 11. Evolution and Behavior

Rapid development of the flowering plant appeared in which geological era?
TLS Online TPP Program

#Question id: 18598

#Unit 11. Evolution and Behavior

First forest plants appeared in which geological period time scale?
TLS Online TPP Program

#Question id: 18599

#Unit 13. Methods in Biology

Three guys A, B, and C gets involved in a cycle race. All the guys are competent at the same level. If they race once a day for a week, what is the probability of A winning the race thrice?