First search up what a lunar is then look in images and you should find your answer
D) selecting random sample allows for a more representative sample in a survey.
ANSWER:
D. A system of desktops
Answer:
an automatic response established by training to an ordinarily neutral stimulus.
Explanation:
For example, the smell of food is an unconditioned stimulus, a feeling of hunger in response to the smell is an unconditioned response, and the sound of a whistle when you smell the food is the conditioned stimulus. At this point, the response becomes known as the conditioned response.
