D - an increase in tree cover in the tundra.
Answer:
The cutaneous receptors' are the types of sensory receptor found in the dermis or epidermis. They are a part of the somatosensory system. Cutaneous receptors include cutaneous mechanoreceptors, nociceptors (pain) and thermoreceptors (temperature).
Explanation:
I think it will be heplful
I believe the correct answer to your question is option A. Black moths were selected for when the trees turned black.
Hope I could help! :)