Phosphorus<span> uptake by </span>plants<span>. </span>Plants<span> take up </span>phosphorus<span> from the soil solution as orthophosphate ion: either HPO4-2 or H2PO4-. The proportion in which these two forms are absorbed is determined by the soil pH, when at higher soil pH more HPO4-2 is taken up.</span>
The right answer is C. breathing.
Breathing is a physiological process that supplies the body with oxygen and releases it from carbon dioxide.
The pulmonary alveoli are located in the lungs and allow respiratory gas exchange between the internal medium (the blood) and the external environment (the air or the atmosphere).
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I would say D. natrural selection
Answer:
Amino acids and Proteins
Explanation:
Plants as well as other living organisms require certain nutrients for their growth and development. One major inorganic nutrient that is needed by plants is NITROGEN, obtained in its compound form called nitrates. Nitrogen is necessary component for building amino acids and proteins in the cell because nitrogen is an integral element in the structure of AMINO ACIDS. Nitrogen makes up the amine functional group of amino acids (NH2).
Hence, If there were no nitrogen compounds in the soil, the most immediate effect on plants growing in that soil would be difficulty in synthesizing AMINO ACIDS and subsequently PROTEINS.
