Bacteria can exchange deoxyribonucleic acid (DNA) with other cells through what process?

Which of the following are energy solutions that release pollution into the air>

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

The transport tubes for food coming down the plants are called?