Answer:
I am almost certain it's A and B.
:0)
It is a mixture.
take salt water for example if you boil the water the salt will be left behind. salt water on its own is not a pure substance a pure substance would be just the water by its self.
hope that helps.
Fossils are found in:
<u>(A) sedimentary </u><u>rock✓</u>
(B) sedimentary and igneous rock
(C) metamorphic rock
(D) sedimentary and metamorphic rock
<em>Hope</em><em> this</em><em> helps</em>
Just tell how without plants there wouldnt be humans. We would not be able to live without food and defiantly not without oxygen. No plants mean no life at all.
Answer:
e. They must maintain a pH of 7 in order to function properly.
Explanation:
The pH in lysosome is between 4,5 and 5 because that is the optimal pH for hydrolytic enzymes that are involved in hydrolysis.
The lysosome maintains its pH by pumping in protons from the cytosol via proton pumps and chloride ion channels. Vacuolar-ATPases are responsible for transport of protons and they require ATP hydrolysis for their function. The transport of chloride ions is performed by Cl−/H+ antiporter.
