Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 55786
TLS Online TPP Program

#Question id: 10494

Sucrose is an osmotically active solute in guard cells, One implication of these osmoregulatory features is that stomatal opening & closing is associated with which of the following given statements?

#Unit 6. System Physiology – Plant
  1. Closing of stomata is associated with a decrease in sucrose content primarily and then opening of stomata associated with K+ uptake
  2. opening of stomata is primarily associated with K+ uptake, and closing of stomata is associated with a decrease in sucrose content
  3. opening of stomata is primarily associated with a decrease in sucrose content and closing of stomata is associated with K+ uptake
  4. opening of stomata is primarily associated with ions uptake and closing of stomata is associated with a increase in sucrose content
More Questions
TLS Online TPP Program

#Question id: 13183

#Unit 10. Ecological Principles

The MacArthur-Wilson equilibrium model of island biogeography predicts the number of species found on islands. The figure below depicts two volcanic islands located off a section of mainland coast.


According to the MacArthur-Wilson model, how would the number of bird species change from the time of an island's formation (assuming it remains constant in size and isolation)?
TLS Online TPP Program

#Question id: 13182

#Unit 10. Ecological Principles

The MacArthur-Wilson equilibrium model of island biogeography predicts the number of species found on islands. The figure below depicts two volcanic islands located off a section of mainland coast.

The MacArthur-Wilson model predicts that the relative numbers of bird species on the mainland and two islands would be
TLS Online TPP Program

#Question id: 13181

#Unit 10. Ecological Principles

Generally speaking, deserts are located in places where air masses are usually
TLS Online TPP Program

#Question id: 13180

#Unit 10. Ecological Principles

Which of the following is responsible for the summer and winter stratification of deep temperate lakes?
TLS Online TPP Program

#Question id: 13179

#Unit 10. Ecological Principles

In temperate lakes, the surface water is replenished with nutrients during turnovers that occur in the
TLS Online TPP Program

#Question id: 13178

#Unit 10. Ecological Principles

Turnover of water in temperate lakes during the spring and fall is made possible by which of the following?