TLS Online TPP Program

#Question id: 7140


In thinking about the development of the wing imaginal disc of Drosophila, what is the significance of 'compartments'?

#Unit 5. Developmental Biology
  1. A compartment is a signaling center that controls antero-posterior patterning
  2. Compartments are developmental units, in that the wing forms from the 'wing compartment'
  3. Compartments are epithelial sacs, set aside during embryogenesis, that will give rise to adult structures such as wings after metamorphosis.
  4. Since cells in adjacent compartments have different lineage histories, adjacent compartments can adopt different fates and differentiation patterns, as in the formation of the anterior and posterior portions of the wing blade.
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TLS Online TPP Program

#Question id: 9163

#Unit 9. Diversity of Life Forms

Use the following figures to answer the question below


Based on the data in the figures, which of the following statements are correct?

I) Area 1 would be considered a desert because of its high average temperature.

II) Area 1 has more average precipitation than Area 2.

III) Area 2 would be considered a desert because of its low average precipitation.

IV) Area 2 has a larger annual temperature variation.

TLS Online TPP Program

#Question id: 9164

#Unit 9. Diversity of Life Forms

Use the following figures to answer the question below.


East of the Mississippi River, in Hopkinsville Kentucky, the mean annual precipitation is 130 cm. The mean annual temperature is 14.3°C. In the winter, the mean temperature is 7.3°C, while in summer it is 20.6°C. Using the climograph shown here, how would we classify the biome found in Hopkinsville?


TLS Online TPP Program

#Question id: 9165

#Unit 9. Diversity of Life Forms

Which of the following biomes spans the largest annual mean temperature range, but the narrowest mean precipitation range?

TLS Online TPP Program

#Question id: 9166

#Unit 9. Diversity of Life Forms

If global warming continues at its present rate, which biomes will likely take the place of the coniferous forest (taiga)?

TLS Online TPP Program

#Question id: 9167

#Unit 9. Diversity of Life Forms

If you conclude that vegetation at every point on Earth exactly resembles the predicted biome distribution in a climograph, then ________.

TLS Online TPP Program

#Question id: 9168

#Unit 9. Diversity of Life Forms

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