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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: 18073

#Unit 11. Evolution and Behavior

During which geological period was there an first definite evidence of land plants and algae dominant of many plants?
TLS Online TPP Program

#Question id: 10579

#Unit 10. Ecological Principles

The following graph is growing population, which of the following represent growth pattern?
TLS Online TPP Program

#Question id: 8916

#Unit 9. Diversity of Life Forms

What do animals as diverse as corals and monkeys have in common?
TLS Online TPP Program

#Question id: 10378

#Unit 6. System Physiology – Plant

Nod factor as signaling agents binds with the nod factor receptor NFR on the basis for host–symbiont specificity, which of the following is incorrect?
TLS Online TPP Program

#Question id: 3620

#Unit 8. Inheritance Biology

Which of the following word is a short form of allelomorph?