Answer: Option(a) is correct option
Explanation:
As per theory of Lepper and colleagues (1973), rewards play a major role in motivation of a student for performing activity as compared to non-rewarding activity.They describes about undermine of performance due to presence of reward in certain time and situation.
According to the question, Joseph will tend to paint in future because he has seen it as the method of earning money as reward rather than making it a passion or enjoying painting.He is interest in money majorly
Other options are incorrect because Joseph becoming an artist in future, still carry out painting passion even if aunt stops rewarding him and money rewarding painting are considered better than no-money rewarding painting are not the outcome of scenario. Thus, the correct option is option(a).
Your answer would be C. <span>labor shortages due to a declining population. I hope it helps :)</span>
Answer:
experiments with Darwin’s original hypotheses
Explanation:
Charles Darwin is known for his theory of evolution which stated that species change over time as a result of the natural selection and all the species have descended from a common ancestor.
Mendel published his results in 1865 which termed the heredity material as factors but both of them were unknown with the concept of the gene.
Later experiments showed that evolution is correlated with genes or the genes control the evolution by causing mutation in the DNA. These experiments are the ones which were performed to test the original hypothesis of Darwin.