Answer:
C) Transpiration rates will fall to zero as nonpolar compounds do not have the properties necessary for adhesion and cohesion.
Explanation:
Transpiration is the movement of water through a plant and its evaporation from aerial parts,for example leaves, stems and flowers.
From the question, The loss of water from a plant by transpiration cools the leaf. That is to say, Water as a polar solvent due to the presence of oxygen molecule with greater electronegative effect giving rise to polarity.
Also, Movement of water in transpiration requires both adhesion to the conducting walls and wood fibers of the plant and cohesion of the molecules to each other. All these factors are as result of polarity of water.
BUT, in the case of a non polar solution, let say oil for example; Transpiration rates will fall to zero as nonpolar compounds do not have the properties necessary for adhesion and cohesion due to their little or no polarity.
Answer:
B
Explanation:
Bulk flow is an energy-requiring mechanisms, whereby water and solutes move through the cell due to its pressure gradient. This process is much faster when compared to osmosis and diffusion.
Answer:
C
Explanation:
Resource availability may be the selection pressure, however, it will not lead to evolution. Evolution is by chance whereby offsprings accumulate mutations that result in phenotypic changes that may allow them to access other sources of food.
Answer:
capillaries:carry blood away from the body and exchange nutrients waste and oxygen with tissues at the cellular level.
veins:are blood vessels that bring blood back to the heart and drain blood from organs and limbs
Three materials transported by global ocean circulation are water, nutrients that are brought to the surface of the water and oxygen that is taken from the surface and sent to the deep ocean.