When a trait has two forms and one trait is expressed over the other, the trait that is expressed is said to be ─

Arafura file snakes are large, aquatic, non-venomous snakes found in the flood-plains of australian rivers. they feed only on fish found in the rivers. it has been observed that heavy rainfall in the wet season in one year leads to prolonged inundation of the floodplains lasting a year or longer. it has also been observed that these snakes remain in good physical condition after a flood. explain how the file snake population in a region is likely to be affected by the prolonged inundation of a flood-plain.

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

What is a cordon and where is it found