It should be an explanation on what you wanna learn about in the experiment, it should be based on prior knowledge, it is also different from a prediction
The answer to your question is option b
This is because if the trees are black, and covered with soot due to the pollution, caused by industrialisation, the white moths will be easily seen and constantly hunted by the predator, compared with the black moth population as they camouflage easily. Ultimately, the white moths would be hunted to such an extent that their population would dramatically decrease
Mutations can be categorized based on the kind of effect they have on an organism. Blue eyes in humans are a result of a mutation in the OCA2 gene, which controls the production of pigment melanin in the iris.
This mutation is an example of a neutral mutation. Such mutations have no effect on an organism’s survival.
