Answer:
The correct option is<u> B.adhesion</u>
Explanation:
A molecule of water is made up of a hydrogen atom and two oxygen atoms. The water is a polar molecule; hydrogen ions carrying a positive charge and oxygen atoms carrying negative charge. The negatively charged oxygen atom of one molecule will attract the positively charged hydrogen atom of another water molecule. Hence, developing the forces of adhesion or hydrogen bonds. This forces of adhesion pull the water upwards when water is lost by leaves through transpiration.
Answer:
In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.
Explanation:
Hope this helped you! :D
The cell plasma membrane is composed of a phospholipid bilayer structure in which the hydrophobic tails of each phospholipid face inwards forming a hydrophobic core. The core restricts movement of hydrophilic substances across the membrane by repelling them. Hence the peptidoglycan precursors must be sufficiently hydrophobic in order to bypass the hydrophobic core of the bilayer and leave the cell to reach the cell wall.
The pacific salmon is motivated by the massive feeding and potential growth by nutrients in the sea. One obstacle that they would face is the time of the journey and the predators along the way.
