Mendel gets his due eventually
The chromosome theory of inheritance, or the idea that we receive a combination of traits from each parent carried on a set of distinct pairs, was proposed in 1902 and was the first study to rely heavily on Mendel's ideas of dominant and recessive traits.
Explanation:
industrialization led to an increasing proportion of the population living in towns, and thus dependent upon the agricultural population for their food. This encouraged the commercialization of agriculture and the decline of subsistence farming.
B and C I’m pretty sure it was also because of a problem with the O-rings on the shuttle
