When does thousand turn into thousands?

My boyfriend and I are arguing whether *thousands of miles* means 1000+ or 2000+ miles. The first argument is that 1000+ is over 1000 and therefore 'thousands of miles' by rounding up. The other... more

Is there a difference between polarity and hydrophobicity?

From literature the two terms seem to be interchangeable when discussing protein domains and motifs. But biochemically, what are the specific differences between these two terms? For example what... more

07/11/19

What is a neural crest derivative?

What is an irreversible reaction?

There are reactions with large Delta G negative values. Why these reactions are irreversible? As in: out of 10 steps of Glycolysis, 3 are irreversible steps. I need an explanation for why they are... more

06/08/19

Do changes in an organism's cell modify the genetic information it uses for reproduction?

What I'm actually interested about is whether a modification in one cell during the life of an **asexually** reproducing organism affects its genetic information? Which cell's genetic information... more

04/14/19

Why are there no rabbits at high altitude in the smoky mountains

Why are there no rabbits at high altitude in the smoky mountains ?

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