American people that supported imperialism said they had a duty to "civilize" and christianize other people, thought they needed to spread western culture.
<span>Gurdon's nuclear transplantation experiments with clawed toads supports the hypothesis that </span>differentiation is the result of genes being successively turned off.
The tools and his experiment draw much attention of the scientists and those tools are still being used in nuclear transfer.
Answer:
The answer is C. thresher
