When describing the effectiveness of different types of reinforcers, why is money different from food?

In operant conditioning, food is considered a primary reinforcer because it is a biological need that reinforces behavior naturally. Eating satisfies a need for hunger so food is automatically reinforcing. In other words, the need to satisfy one’s hunger motivates behavior naturally. Money, on the other hand, is a secondary reinforce because the value of money must be learned and associated with a primary reinforce such as a need to achieve or succeed. Once the value of money is learned, it can be a very effective method of reinforcement.

the index of refraction of the second medium is higher. i just took the test trust me !

the backbone of the dna and rna compound is sugar phosphate.