Distinguishing Temperatures of Stars
The color and temperature of stars are closely related. Which color star is the hottest?
black
red
yellow
O blue

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone