Tropical, temperate, and polar describe climate zones due to A. latitude.
B. rainfall amount.
C. temperature.
D. snowfall amount.

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?

1. fold your hands together so your thumbs cross over ,and look at your thumbs. which thumb feels most "comfortable" on top is actually controlled by a gene. the left thumb folding over the right thumb is a domi

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?