Using your knowledge of aspartyl proteases, develop a plausible explanation for why protein activity changes when ph is increased or decreased from ph 4, as shown in the graph.

Iknow the answer is a but i don't know why

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.

Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration