What does the word phloem mean

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil

1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?