An actin gene in humans is 80% identical to the homologous gene in yeast. What does this say about how long ago these organisms had a common ancestor?

Aperson travels 35 km in 0.4hrs, followed by 53 km in 0.6 hr. what is the average speed

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his 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

Someone me with this: a mineral' is determined by its actomic structure.