1. C
2.B
3. A
Hope this helps you out, try to think of why a cell is important to function when answering these questions!
The statement that best describes the difference is ; The substance with the lower pH has 1000 times as many hydrogen ions per volume of water. ( D )
Given that the substance have pH ; 3 and 6
To prove the statement above we will make use of the pH formula
pH = -log(H⁺)
<u>for substance with </u><u>pH = 3</u><u> </u>
3 = - log(H⁺)
H⁺ ( hydrogen ions ) = 10⁻³
<u>for substance with </u><u>pH = 6</u>
6 = - log(H⁺)
H⁺ ( hydrogen ions ) = 10⁻⁶
Hence we can state that the substance with the lower pH has 1000 times as many hydrogen ions per volume of water
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Plant life, especially the trees in the Rain forest absorb the carbon dioxide and produce oxygen so without them, there would be much more carbon dioxide.
In fact we believe that the oxygen in our atmosphere has origin in plant life! Specifically ocean plants. <span />
Correct answer - Vestigial Structures.
Why? - These unused structures without function are called vestigial structures. Some examples of vestigial structures are wings on flightless birds, leaves on some cacti, and hind leg bones in whales.
