A diagram of the DNA double helix is provided. The DNA components highlighted in the diagram can best be described how? They are -

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

When analyzing tree rings, what do scientists assume a thin ring indicates?

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