TLS Online TPP Program

#Question id: 11129


Which of the following statements concerning the neuronal membrane at rest is correct?

#Unit 7. System Physiology – Animal
  1. The extracellular sodium concentration is less than its intracellular concentration
  2. The concentration of chloride is greatest inside the cell
  3. If the resting potential is moved to a more negative value, the cell becomes more excitable
  4. The concentration gradient for potassium is such that it tends to move out of the cell
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TLS Online TPP Program

#Question id: 12011

#Unit 10. Ecological Principles

The supercontinent that began to break up during  the Triassic

TLS Online TPP Program

#Question id: 12012

#Unit 10. Ecological Principles

The average daily temperature change on an exposed south-facing slope and a north-facing slope for a late summer day in the Northern Hemisphere are shown below.

Compared with a south-facing slope, the climatic conditions on a north-facing slope favour the formation of a vegetation community best adapted to

TLS Online TPP Program

#Question id: 12013

#Unit 10. Ecological Principles

The average daily temperature change on an exposed south-facing slope and a north-facing slope for a late summer day in the Northern Hemisphere are shown below.


The difference in the  maximum average daily  temperature between the  south-facing slope  and  the  north-facing slope is approximately

TLS Online TPP Program

#Question id: 12014

#Unit 10. Ecological Principles

The receptive surface for pollen on an angiosperm flower is the

TLS Online TPP Program

#Question id: 12015

#Unit 10. Ecological Principles

The oxygen consumption of marine crabs acclimated to either 10°C or 20°C was measured at environmental temperatures of 5°C to 25°C to produce the following graph.

Which of the following can be correctly concluded from the information in the graph?

TLS Online TPP Program

#Question id: 12016

#Unit 10. Ecological Principles

The ability of a desert rodent's kidneys to form highly concentrated urine is largely attributable to