Ribonuclease is an enzyme. it is 127 amino acids long. what is the minimum number of dna bases needed to code for ribonuclease?

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

How does friction with the atmosphere affect the speed of an artificial satellite

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point