When Cuvier considered the fossils found in the vicinity of Paris, he concluded that the extinction of species ________.

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#Question id: 3462

#Unit 11. Evolution and Behavior

Which describes brightly colored peacocks mating more frequently than drab peacocks?

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#Question id: 15419

#Unit 5. Developmental Biology

Doris Taylor’s research group used detergents to remove all the cells from a cadaveric rat heart, which leaves behind the natural extracellular matrix. An extracellular matrix scaffold can promote the differentiation and rebuilding of a beating heart. The researchers then infused this ECM scaffold with cardiomyocytes. Now these cells differentiated and organized into a functionally contracting “recellularized” heart. Which of the following statement is correct?

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#Question id: 11643

#Unit 7. System Physiology – Animal

Rapid changes to skin color in many vertebrates is under the control of ________.

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#Question id: 26474

#Unit 3. Fundamental Processes

Choose the incorrect option regarding Rho protein

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#Question id: 15452

#Unit 4. Cell Communication and Cell Signaling

During  activation of B-cell, T cell delivers cytokines and other signals to its partner B cell. Which types of cytokine signals secreted by T-cells?