expansion amounts for 50 cm of each of the solids:

brass alloy: 0.11 cm
aluminum: 0.07 cm
iron: 0.12 cm
steel alloy: 0.04 cm

each strip of metal was the same thickness and was heated to 100°c.

based just on the data, which conclusion can be drawn?
a) metals expand upon heating.
b) alloys expand less upon heating than elemental metals.
c) alloys expand more upon heating than elemental metals.
d) the rate of expansion of metals is directly proportional to the temperature to which it is heated.

What advantages does a pedigree have over a written passage?

Astudent completed a lab report. which correctly describes the difference between the “question” and “hypothesis” sections of her report? “question” states what she is asking, and “hypothesis” states the result of her experiment. “question” states what she is asking, and “hypothesis” states what she thinks the answer to that question is in “if . . then . . because” format. “question” describes what she is trying to find out, and "hypothesis" states the procedures and methods of data collection. “question” describes what she is trying to find out, and “hypothesis” states any additional information or prior knowledge about the question.

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.