Answer: d. double-blind
Explanation:
A double blind study can be define as the study in which both the researcher and participant do not know which participant is receiving a particular treatment. This method is useful as it prevents the bias in the results of the experiment.
The given situation is the example of double-blind study. Here, the participants as well as the researcher do not know which group of subject are receiving bacteria in the yogurt and which group is not receiving.
Because it stretches your muscles <span />
Answer: I agree with him because his expectations in people help them become better mentally stable
Explanation:
breast, colon, and pancreatic cancer
People usually have a growth spurt when they are going throw puberty. Some people grow more than others, The definition of a growth spurt is an occurrence of growing quickly and suddenly in a short period of time.
