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#Question id: 8919


The last common ancestor of all animals was probably a

#9. Diversity of Life Forms
  1. unicellular chytrid.
  2. unicellular yeast.
  3. flagellated protist
  4. multicellular fungus.

Answer:- Option(s): 3


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#Question id: 11100

#7. System Physiology – Animal

Which circumstance would increase ventilation frequency in humans?

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#Question id: 11101

#7. System Physiology – Animal

The rate at which new air is brought into the alveoli and other respiratory pathways is called the

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#Question id: 11102

#7. System Physiology – Animal

Pulmonary surfactant

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#Question id: 11103

#7. System Physiology – Animal

A key mechanism of gas transport through the tracheal system is

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#Question id: 11104

#7. System Physiology – Animal

The serous membrane covering the surface of the lungs is called the:

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#Question id: 11105

#7. System Physiology – Animal

Which one of the following is NOT a function of the paranasal sinuses:

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