The phenomenon of soil erosion takes place by the help of the wind and water. The wind and water helps to erode the soil from the mountains, land, desert and other possible places from where erosion is possible.The river water carry small particles of soil and sand along with them which also helps in soil erosion.
Protonephridia are made up of many flame cells. Flame cells are specialized excretory cell found in the simplest freshwater invertebrates like flatworms.
A person who has a recessive trait must have two<span> recessive alleles because - A dominant allele does not let a recessive trait show up, in other words it simply dominates and… over shadows the recessive trait.</span>
