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TLS Online TPP Program

#Question id: 11194

The "threshold" potential of a membrane is the ________.

#Unit 7. System Physiology – Animal
  1. lowest frequency of action potentials a neuron can produce
  2. minimum hyperpolarization needed to prevent the occurrence of action potentials
  3. minimum depolarization needed to operate the voltage-gated sodium and potassium channels
  4. peak amount of depolarization seen in an action potential
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TLS Online TPP Program

#Question id: 23768

#Unit 7. System Physiology – Animal

Which of the following cells function as photoreceptors?
TLS Online TPP Program

#Question id: 5314

#Unit 11. Evolution and Behavior

Which of the following statements correctly describes one characteristic of a multigene family?
TLS Online TPP Program

#Question id: 8962

#Unit 9. Diversity of Life Forms

What is characteristic of all ecdysozoans?
TLS Online TPP Program

#Question id: 11089

#Unit 7. System Physiology – Animal

A 45-year-old man inhaled as much air as possible and then expired with a maximum effort until no more air could be expired. This produced the maximum expiratory flow-volume curve shown in the following diagram. What is the forced vital capacity of this man (in liters)?
TLS Online TPP Program

#Question id: 3034

#Unit 2. Cellular Organization

Cyanobacteria are