All cells contain a phosphate buffer system within their internal fluid to maintain a constant ph. this system can be summarized by the following chemical equation: h2po4- (aq) h+ (aq) + hpo4-2 (aq) this system mostly contributes to which of the following cellular activities a. maintaining homeostasis b. reproduction c. natural selection d. acquiring energy

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.