Which are examples of artificial selection? select all the answers that apply.

Select the correct answer from each drop-down menu proteins are

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?

The smallest parts of these that retain their original properties are called