TLS Online TPP Program

#Question id: 10324


Which of the following is not true of all horizontally oriented phylogenetic trees, where time advances to the right?

#9. Diversity of Life Forms
  1. Each branch point represents a point in absolute time.
  2. Organisms represented at the base of such trees are ancestral to those represented at higher levels.
  3. The more branch points that occur between two taxa, the more divergent their DNA sequences should be.
  4. The common ancestor represented by the rightmost branch point existed more recently in time than the common ancestors represented at branch points located to the left.
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TLS Online TPP Program

#Question id: 11068

#7. System Physiology – Animal

A patient has a dead space of 150 ml, functional residual capacity of 3 L, tidal volume of 650 ml, expiratory reserve volume of 1.5 L, total lung capacity of 8 L, and respiratory rate of 15 breaths/min. What is the residual volume?

TLS Online TPP Program

#Question id: 11070

#7. System Physiology – Animal

A patient has a dead space of 150 ml, functional residual capacity of 3 L, tidal volume of 650 ml, expiratory reserve volume of 1.5 L, a total lung capacity of 8 L, respiratory rate of 15 breaths/min. What is the alveolar ventilation?

TLS Online TPP Program

#Question id: 11071

#7. System Physiology – Animal

At the end of inhalation, with an open glottis, the pleural pressure is

TLS Online TPP Program

#Question id: 11072

#7. System Physiology – Animal

The following diagram shows pulmonary airway resistance expressed as a function of pulmonary volume. Which relationship best describes the normal lung?


TLS Online TPP Program

#Question id: 11075

#7. System Physiology – Animal

A 65-year-old man with emphysema due to 34 years of cigarette smoking is admitted to hospital due to dyspnea. With further tests the mean pulmonary arterial pressure is determined to be 45 mm Hg at rest. He is hypoxic (PO2 = 49 mm Hg), hypercapnic (85 mm Hg), and slightly acidotic. The cardiovascular and oxygen changes are due to which of the following?

TLS Online TPP Program

#Question id: 11076

#7. System Physiology – Animal

Which of the following will decrease pulmonary blood flow resistance?