<span>A. They move and catch their food </span>
The experiment conducted by Paul was not a waste of his time and resources even though he could not accomplish the experiment he initially prepared to conduct. The reluctance of the penguins to eat burgers even though they were starving and losing weight pointed towards the fact that they do not find junk food appealing. It could be concluded from their reluctance that they will eat only their normal diet rather than something they have never eaten before.
Answer:
Animal by-products.
The USDA (United States Department of Agriculture) defines an animal product as anything made from an animal, excluding muscle meat.
A biochemical cycle that is well know to everyone is the water cylce
