Pretend That you Are a carbon atom. Write a short story that describes your journey through the carbon cycle

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal responds by in order to its core temperature?

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?