Will listening to classical music while studying increase students' test scores over those of students who listen to heavy metal music wheill studying

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?

Produce proteins by following coded instructions that come from the nucleus of the cell.

Hey everybody i need with a biology question. all the gametes of isogamous organisms are genetically identical. true false