Phillip just came home to his apartment after taking a long, vigorous bike ride. He enters the front door to find his roommate, Brandon, sitting on the couch playing videogames and eating potato chips. Phillip tells Brandon that if he keeps being so lazy and snacking so much he's going to start looking chubby. Brandon just waves Phillip off and goes back to his game. Are Brandon's cardiac muscles increasing or decreasing in strength?
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Answer: decreasing

Two groups of athletes started new training routines this year. Group A started weight lifting for three months, while Group B, did running exercises. Which group's cardiac muscle contracts slower?
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Answer: Group B

Calving is sitting in his kitchen when he decides to play around with some ice and water. He takes an ice cube out of the freezer and puts it on a plate on his kitchen table. He then takes a glass of water and puts it into the freezer. He is curious to see if the ice cube will melt before the water freezes. Is the temperature of the ice cube's surroundings increasing or decreasing?
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Answer:
decreasing