Answer:
The correct answer is - They have substances that counteract acids or bases to prevent the pH from changing
Explanation:
All living organisms including humans are water-based systems, which implies that they rely intensely upon liquid equilibria, particularly acid-base equilibria. Hence, all the acid-base and pH ideas we have talked about so far are critical to the chemistry of organic or biological systems.
This is particularly significant for enzyme, which are proteins that go about as catalysts for all major biological reactions. Most enzymes just work inside a specific pH range. Because all natural cycles are subject to pH, cells and creatures must keep up a particular and consistent pH so as to keep their compounds in the ideal condition of protonation they have specific substances that counteract the acid and base to maintain pH.
for instance:
The pH of the Cytoplasm is maintained by the phosphate ion
The pH of the blood is regulated by the bicarbonate ion
Answer:
Turbidity
Explanation:
The variable that is the best to help a student to measure in order to know the impact of soil erosion which was caused by the construction project that took place on the river TURBIDITY will be the best variable reason been that TURBIDITY help to measure the cloudiness in a water which means that the higher the cloudiness in a water the higher the TURBIDITY and Secondly a situation where their is a high soil erosion it will often lead to reduction in clarity of water which is why TURBIDITY is a vital tool to help measure all the particles in water which a physical eyes cannot see.
Answer:
Denver Regional Aerial Photography Program