Question

A cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed at 2 years. What is the manipulated variable?

Answer 1

Answer:

First off, the growth hormones given to dairy cows and beef cattle are different. In dairy cows, the controversy centers around recombinant bovine growth hormone (rBGH), a synthetic version of a hormone cows produce naturally. (It's also sometimes called rBST, for recombinant bovine somatotropin.)