Answer
D.Experimental bias
Explanations
Experimental bias occurs when a scientist performing a research influence the results in order to portray a certain outcome.In this case,Ron unintentionally smiled when then subject was showing to act as expected.In doing so,"smiling" the subject was able to identify the correct answer.
Answer:
a skull i cant do one right
Explanation:
can i get brainliest plz
YES OFC IS THAT EVEN A QUESTION
Answer:
I am pretty sure it is grass
Explanation: