In the 1960s new evidence support the theory of continental drift and change into the theory of plate tectonics why was this new evidence

What feature of cell theory is best demonstrated in the image

Which codon is the code for the amino acid histidine (his)?

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important