Primary reinforcers have distinctive reinforcing qualities; not learned. In addition, secondary reinforcers has no inherent value and only has reinforcing qualities when linked with a primary reinforcers. The positive reinforcement is a desirable stimulus is added to increase behavior while negative reinforcement is an undesirable stimulus is removed to increase behavior.
Starfish has a endoskeleton
a coral has a exoskeleton
sponge has neither
D) Exercise is the answer
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Answer:
qualitative data - Hair color , Blood type Ethnic group
quantitative data - number of students in class , height , weight
Explanation:
hop it helps
