If the first and the second digits in the number 57124893 were interchanged, similarly the third and the fourth, and the fifth and the sixth and so on, which digit will be the fourth counting to your left?

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#Question id: 8919

#9. Diversity of Life Forms

The last common ancestor of all animals was probably a

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#Question id: 1101

#4. Cell Communication and Cell Signaling

The activity of adenylyl cyclase is essentially the opposite of which of the following enzymes?

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#Question id: 11195

#7. System Physiology – Animal

Action potentials move along axons ________.

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#Question id: 16787

#13. Methods in Biology

The following observations are arranged in ascending order. The median of the data is 15 find the value of x. 

8, 11, 12, x + 6, 17, 18, 23 

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#Question id: 5844

#8. Inheritance Biology

In homologous genetic recombination, RecA protein is involved in: