Answer:
the first one
Explanation:
The animals above it can no longer eat it, and the animals below it will no longer be eaten by it.
Answer: it decomposes further to form crude oil and it also used to trace the history of an organism
1) Lysosomes, because they are the organelles that secrete these hydrolytic enzymes and help break down old organelles, viral/bacterial invaders, and food particles. For more information on cells please see the link in sources, it's a great slide show and can probably help you in the future too. Bookmark it!
<span>2) There are some really great sites explaining homeostasis and active transport below in the sources, some with animation that may make it a little easier for you to understand exactly what happens. </span>
<span>3) If you understand active transport first, the answer will actually be very easy. All you have to do is explain how active transport maintains homeostasis in the first place, then apply it to the specific situation of the fish. I honestly feel you need to answer this one yourself, since it is very clearly a question to test the comprehension of this material on your part; if you don't get it, you probably won't pass, and you'll be better off in the long run answering it yourself. </span>
<span>I hope the links help! And don't be afraid to use your book's index to find more information in chapters you haven't covered yet!</span>
Answer:
In a cell, there are two kinds of gradients found, that is, chemical and electrical. The electrical gradient is produced by the net charge of negative and positive charges found across the membrane. The chemical gradient is produced by the concentration of ions across the membrane. In combination, it is called the electrochemical gradient, which in general function in reverse directions.
The procedure where pumping of ions takes place across the membrane via ion pumps against the electrochemical gradient is known as the active transport. This mode of transport sustains the balance of ions across the membranes and is dependent upon energy. The ATP is provided by the metabolic activities of the cell.