HELP PLZ! Which of the following does not occur in an aquatic ecosystem as a result of nutrient loading?
a.
acidification of the water
b.
algae growth as a result of eutrophication
c.
degraded quality of water for human and livestock consumption
d.
improved water habitats for human recreation

Which of the following characteristics are true of enzymes? check all that apply. a.)the structure of an enzyme can change if conditions change. b.)a single enzyme can normally catalyze a wide variety of reactions under many conditions. c.)enzymes are found only in nonliving systems. d.)enzymes allow living things to regulate body conditions through feedback mechanisms. e.)enzymes bind to specific substrates in specific ways. f.)enzymes increase the rate of reaction. g.)when shown in energy-reaction diagrams, enzymes represent the higher activation energy.