Help this one pls, l hope is easy

List two modern organisms that have pentameral symmetry

The influenza virus cause the flu, but not other diseases. why?

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