A sparrow will build its nest under the nest of an osprey. The smaller birds get protection because other predators will not mess with the osprey. The osprey is unaffected. What kind of symbiotic relationship do they have?
Mutualism, Commensalism, Parasitism.

Commensalism

Explanation:

Long-term biological activity in which advantages are obtained by members of one species while those of the other species do not benefit or are harmed.

answer; hypnagogic sensations)

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.