Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 45929
TLS Online TPP Program

#Question id: 9168

Which of the following statements best describes the interaction between fire and ecosystems?

#SCPH06 I Botany

  1. The likelihood of a wildfire occurring in a given ecosystem is highly predictable over the short term.

  2. Many kinds of plants and plant communities have adapted to frequent fires.

  3. The suppression of forest fires by humans has prevented certain communities, such as grasslands, from reaching their climax stage.

  4. Chaparral communities have evolved to the extent that they rarely burn
More Questions
TLS Online TPP Program

#Question id: 1393

#SCPH28 | Zoology

In research on aging (both cellular aging and organismal aging), it has been found that aged cells do not progress through the cell cycle as they had previously. Which of the following, if found in cells or organisms as they age, would provide evidence that this is related to cell signalling?
TLS Online TPP Program

#Question id: 1394

#SCPH05 I Biotechnology

Apoptosis involves all but which of the following?
TLS Online TPP Program

#Question id: 1394

#SCPH06 I Botany

Apoptosis involves all but which of the following?
TLS Online TPP Program

#Question id: 1394

#SCPH28 | Zoology

Apoptosis involves all but which of the following?
TLS Online TPP Program

#Question id: 1395

#SCPH05 I Biotechnology

Which of the following mutations would promote malignancy in cells whose proliferation is inhibited by TGFβ?

a. overexpression of Smad2               

b. loss of Smad 4

c. overexpression of TGFβ receptor I

d. loss of TGFβ receptor II
TLS Online TPP Program

#Question id: 1395

#SCPH06 I Botany

Which of the following mutations would promote malignancy in cells whose proliferation is inhibited by TGFβ?

a. overexpression of Smad2               

b. loss of Smad 4

c. overexpression of TGFβ receptor I

d. loss of TGFβ receptor II