To be considered considered valid, the results of a scientific experiment must be?

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

How does human environment effect the biosphere

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.