Answer:
A scientific hypothesis can be described as a tentative statement which can either proved to be right or wrong through the support of the experiments being performed.
The possible hypothesis for the theory that Wood Thrush decreases are not due to deforestation can be as follows:
<em>'If the population of the Wood Thrush is not affected by deforestation, then the population of the Wood Thrush will remain the same when deforestation occurs in a particular area.' </em>
A frog's lungs don't work that well, but since it's skin is so thin, oxygen and carbon dioxide can pass trough it.
When a mutation has an effect that helps a species adapt to an environment, and specimens of both genders have it, it will end up taking over, causing evolution to gradually happen.
