A man travelled a distance of 61 km is 9 hours. He travelled partly on foot at 4 km/hr and partly on bicycle at 9 km/hr. What is the distance travelled on foot?

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#Question id: 12570

#Unit 10. Ecological Principles

Extinction is a natural phenomenon. It is estimated that 99% of all species that ever lived are now extinct. Why then do we say that we are now in a biodiversity crisis?

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#Question id: 347

#Unit 1. Molecules and their Interaction Relevant to Biology

A beaker contains 100 milliliters (mL) of NaOH solution at pH = 13. A technician carefully pours into the beaker 10 mL of HCl at pH = 1. Which of the following statements correctly describes the result of this mixing?

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#Question id: 1734

#Unit 4. Cell Communication and Cell Signaling

The nuclear AP-1 site responsible for 90% of IL-2 enhancer activity binds:

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#Question id: 19053

#Unit 13. Methods in Biology

The principle on which thin layer chromatography is based is that the ____________

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#Question id: 30100

#Unit 1. Molecules and their Interaction Relevant to Biology

In the catabolism of CTP: <