Which animal is warm blooded?
polar bear
bird
panda
all of the above

What is the best-known carbohydrate?

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?

Use the distance formula to determine weather each pair of segments have the same length