“Discoveries: Mighty Mouse Bred” U. S. scientists have bred a "Lance Armstrong" mouse. It can't pedal a bike, but it can run on a treadmill for more than six hours before pooping out.
What accounts for the mouse's amazing endurance? For one thing, its muscle cells have 10 times the usual number of mitochondria, according to the scientists, who work at Case Western Reserve University. Mitochondria are the main energy sources in a cell.
The mouse also produces less lactic acid, a byproduct of metabolism that is released in large amounts during physical exercise. If too much lactic acid builds up in the body, the excess can lead to fatigue and a burning sensation in the muscles. The mighty mouse's body is very similar to that of champion cyclist Lance Armstrong, which produces energy without releasing too much lactic acid, keeping Armstrong from tuckering out.
When put through a grueling uphill treadmill test, the mouse ran for 32 minutes, compared with 19 for regular mice. To maintain that pace, the mouse eats 60 percent more food than other mice do yet weighs half as much.
The mighty rodent is called a PEPCK-Cmus mouse after a certain enzyme that is abundant in the mouse's body. An enzyme is a protein that speeds up a chemical reaction in the body. The scientists have bred 500 PEPCK-Cmus mice, with more on the way. Female mice normally stop reproducing at 1 year of age. The PEPCK-Cmus females reproduce until they are 2½, the equivalent of an 80-year-old woman having a baby!

Why might the writer have compared the new breed of mouse to Lance Armstrong? Please cite evidence from the text.

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Read this excerpt from leo tolstoy's the death of ivan ilyich her attitude towards him and his diseases is still the same just as the doctor had adopted a certain relation to his patient which he could not abandon, so had she formed one towards him—that he was not doing something he ought to do and was himself to blame, and that she reproached him lovingly for this--and she could not now change that attitude. "you see he doesn't listen to me and doesn't take his medicine at the proper time. and above all he lies in a position that is no doubt bad for him.- with his legs up" she described how he made gerasim hold his legs up the doctor smiled with a contemptuous affability that said"what's to be done? these sick people do have foolish fancles of that kind, but we must forgive them they all rose, said good-night and went away when they had gone it seemed to ivan ilyich that he felt better, the falsity had gone with them. but the pain remained--that same pain and that same fear that made everything monotonously alike, nothing harder and nothing easier. everything was worse again minute followed minute and hour followed hour everything remained the same and there was no cessation. and the inevitable end of it all became more and more terrible based on the excerpt, how is praskovya fedorovna a character foil to ivan ilyich? a. she is kind and takes care of ivan, which is why he feels guilty about how he treated her for most of their married life • b. she is vindictive toward ivan while pretending to be worried about him, thus reminding him of how his family has never forgiven him she plays the part of the worried wife without any real feeling, symbolizing the false propriety ivan upheld but now hates c. d. she is young, healthy, and beautiful-everything ivan can never be again and wishes he could return to

Read this sentence from the story of my life by helen keller. the most important day i remember in all my life is the one on which my teacher, anne mansfield sullivan, came to me. which element of plot does this sentence best represent?

What can you infer about gregor from this excerpt? a. he is ungrateful and refuses to eat all of the food that grete brings for him b. his appetite is good, which shows that his body is trying to return to human form c. he always eats trash, and grete is trying to get him to remember being human d. his eating habits are changing, and he is becoming physically less human