These bodies of water are all caused by water flowing from the highest point in an area, such as a mountain, valley or hills. In these high areas, rain water or melting snow can collect and create tiny streams of water. When these streams merge or flow below it can create other bodies of water.
This happened because the tall plant genotype is dominant, so if the plant has at least one tall gene, it will be tall. All the F1 generation are heterozygous with this tall dominant gene.
Topsoil is the most fertile soil layer for plants.
active transport. The movement of ions or molecules across a cell membrane in the direction opposite that of diffusion, that is, from an area of lower concentration to one of higher concentration. Active transport requires the assistance of a type of protein called a carrier protein, using energy supplied by ATP.