Ruben Has a New Puppy Named Paddington and Wants to Feed

question 12

Multiple Choice

Ruben has a new puppy named Paddington and wants to feed him the best possible food.He decides on an experiment where he will feed Paddington the very best canned food plus a dietary supplement of vitamins recommended by a veterinarian.Which of the following best describes Ruben's project?

• A)Ruben needs to take careful measurements of Paddington's weight and height at least once a week for it to be a good experiment.
• B)This is an example of an excellent,controlled experiment as it is written.
• C)Ruben needs to control for the amount of exercise,sunshine,water,and care that Paddington gets each week,so that they are equal from week to week.
• D)Ruben needs to feed his mother's 6 -year -old chocolate Shar -Pei named SallyJo a standard diet so that he can compare Paddington to a control.
• E)This is a poorly designed experiment,because there are no control dogs and no treatment replicates.