Fgf10 is function as positive feedback factor in different ways such as___

a) to maintain the activation of both Wnt2b and Tbx5

b) to tells the surface ectoderm to continue to make Fgf8, and the surface ectoderm continues to tell the underlying mesoderm to make Fgf10

c) to maintain the activation of both Wnt3a and Tbx4

d) to tell the mesenchyme cells directly beneath it to continue making Fgf10

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#Question id: 5940

#General Aptitude

The day on April of a year is the same day on what date of the same year?

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#Question id: 10491

#Unit 6. System Physiology – Plant

Acidification of the lumen stimulates zeaxanthin formation, and alkalinization favors violaxanthin formation. Lumen pH depends on photosynthetic photon flux density, most effective at

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#Question id: 12117

#Unit 10. Ecological Principles

Female spotted sandpipers aggressively court males and, after mating, leave the clutch of young for the male to incubate. This sequence may be repeated several times with different males until no available males remain, forcing the female to incubate her last clutch. Which of the following terms best describes this behavior?

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#Question id: 28494

#Unit 5. Developmental Biology

 Which of the following is the major active factor in the ZPA?

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#Question id: 9264

#Unit 9. Diversity of Life Forms

In a comparison of birds and mammals, the condition of having four limbs is