What you have to bear in mind is to make the compound charged, in order that it will be soluble in water than in ether. You should make the pH basic for acid as in the salt compound in order to cause the acid to dissolve in the water layer.<span> </span>
Photosynthesis and cellular respiration are<u> chemical reactions</u> that occur in cells.
<h3>What is photosynthesis and cellular respiration?</h3>
Photosynthesis is the process of making food through carbon dioxide, water and sunlight. It is an anabolic reaction.
Cellular respiration is the process of breaking down of food molecules by oxygen. It is a catabolic reaction.
Thus, the correct option is a, chemical reaction
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The right option is; d. Runoff describes water movement and infiltration describes water storage.
Runoff is the portion of precipitation, irrigation or snow melt that flows over land as surface water instead of infiltrating or evaporating. Factors that influence runoff are permeability, amount of rainfall, slope and vegetation.
Infiltration is the process by which water or precipitation on the ground surface moves into the soil. Factors that determine the rate of infiltration include; soil type, topography of the land, amount of precipitation, vegetation, and pre-saturation levels.
Anything higher in the food chain
Vaccines help prepare the body to fight invasion by a specific pathogen by priming the body's immune system to recognize, react and fight against that specific pathogen should it invade the body.
The initial exposure of the body to an infectious agent e.g. through a vaccine, triggers an immune response most of which rapidly diminishes after the vaccination. However some cells of the immune system called lymphocytes remain with a memory of that pathogen.
As a result, if the same pathogen infects a vaccinated person, the memory cells remember and recognize it and rapidly spring into action triggering a much more rapid response specific to that pathogen than the initial exposure, effectively dealing and neutralizing the pathogen.