In what temperature would a gas change its phase without changing its molecule structure

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?

What would be he the strand of complementary dna produced be the strand of dna shown below> tcg aag

Which of the following do all living things have in common