If birds are excluded from the class Reptilia, the term that consequently describes the class Reptilia is

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#Question id: 1174

#Unit 4. Cell Communication and Cell Signaling

Binding of erythropoietin to its extracellular receptor engages which of the following signaling pathways?

a. JAK/STAT                                                  b. Ras/MAP kinase

c. PI-3 kinase                                                  d. TGF-β

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#Question id: 18853

#Unit 13. Methods in Biology

Your purification strategy of combinations of chromatography steps gives a protein preparation with a single band on SDS-PAGE. Which of the following would be best for determining the protein concentration (as mg/ml or molarity)?

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#Question id: 33107

#Unit 1. Molecules and their Interaction Relevant to Biology

Figure given best describes 

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#Question id: 27134

#Unit 7. System Physiology – Animal

The metabolic rate is least affected by an increase in the plasma level of

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#Question id: 19032

#Unit 9. Diversity of Life Forms

Which of the following is not common to all phyla of vascular plants?