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TLS Online TPP Program

#Question id: 4976

Which of these is the most likely explanation for the existence of dicynodont fossils on modern-day Antarctica?

#Unit 11. Evolution and Behavior

  1. They arrived there aboard ʺraftsʺ of vegetation, and quickly adapted to the bitterly cold climate.

  2. Earthʹs polar regions were once so warm (especially immediately after the ʺsnowball Earth periodʺ) that reptiles and mammal-like reptiles flourished there.

  3. The landmass that is now the Antarctic continent was formerly located at a more-northerly position, and was also united to other landmasses.

  4. Dicynodonts originated on the island continent of Antarctica and went extinct as the continent migrated to its current position at the South Pole.

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TLS Online TPP Program

#Question id: 12575

#Unit 10. Ecological Principles

All of the following are adaptations that permit the camel to be active by day in the desert EXCEPT 
TLS Online TPP Program

#Question id: 11288

#Unit 10. Ecological Principles

Below is a table showing the number of species and actual food web links observed in three different ecosystems. By calculating connectance as a measure of relative complexity of food webs, which of the following ecosystem are more complex? 
TLS Online TPP Program

#Question id: 11619

#Unit 8. Inheritance Biology

If a cross between restricted and dusky  ducks  the only progeny will be form from this cross is restricted and mallard, so what will be the genotype of parents?
TLS Online TPP Program

#Question id: 23872

#Unit 13. Methods in Biology

Genetic engineering is being used by the pharmaceutical industry. Which of the following is not currently one of the uses?
TLS Online TPP Program

#Question id: 5607

#Unit 5. Developmental Biology

Developmental changes that occur when different parts of an organism grow at different rates, phenomenon known as-