Question

A pediatrician is conducting an experiment to determine which brand of baby food (A, B, or C) and amount of tummy

Answer 1

Answer: the babies

Step-by-step explanation:

The experimental unit in an experiment is the one on which the experiment is performed. According to the given experiment, the motive is to identify which brand of baby food is helpful in producing healthier babies which can be determined by the weight gain in babies during first few months after providing the baby food.

Here, the experiment units are the babies which are provided with foods of different baby food brands to check their weight gain and determine their health.