TLS Online TPP Program

#Question id: 7222


During development of sea urchin, The fates of the different cell layers are determined by which process?

#Unit 5. Developmental Biology
  1. The large micromeres are conditionally specified. These conditionally specified large micromeres are now able to produce paracrine and juxtacrine factors that autonomously specify the fates of their neighbors.
  2. The large micromeres are autonomously specified. These autonomously specified large micromeres are now able to produce paracrine and juxtacrine factors that conditionally specify the fates of their neighbors.
  3. All micromeres are autonomously specified during early development.
  4. All micromeres are conditionally specified during early development.
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TLS Online TPP Program

#Question id: 12593

#Unit 10. Ecological Principles

Use the following diagram of five islands formed at around the same time near a particular mainland and MacArthur and Wilson's island biogeography principles to answer the following questions.

Which island would likely exhibit the most impoverished species diversity?

TLS Online TPP Program

#Question id: 12594

#Unit 10. Ecological Principles

Use the following diagram of five islands formed at around the same time near a particular mainland and MacArthur and Wilson's island biogeography principles to answer the following questions.

Which island would likely have the lowest extinction rate?

TLS Online TPP Program

#Question id: 12595

#Unit 10. Ecological Principles

Use the following diagram of five islands formed at around the same time near a particular mainland and MacArthur and Wilson's island biogeography principles to answer the following questions

Which island would likely have the lowest immigration rate?

TLS Online TPP Program

#Question id: 12596

#Unit 10. Ecological Principles

Which of the following best describes the consequences of White-band disease in Caribbean coral reefs? 

TLS Online TPP Program

#Question id: 12597

#Unit 10. Ecological Principles

Probably the most important factor(s) affecting the distribution of biomes is (are)

TLS Online TPP Program

#Question id: 12598

#Unit 10. Ecological Principles

In the development of terrestrial biomes, which factor is most dependent on all the others?