for the first one, its most likely light morph, for the second one dark morph
Explanation:
Birds are sight hunters so that means that they look for their food so in this case the moths on the dark tree that has a dark morph will not be seen but the moth with light morphs on a dark tree will be seen and eaten, and the opposite with light trees but if the tree is speckled the speckled moth will survive depending on the color of the tree. I hope this wasn't too confusing for you.
Populations evolve and individual organisms do not. Evolution occurs through natural selection and survival of the fittest as populations evolve traits that better suit their environment.
