B. Specialist
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Enzymes.
Enzymes are responsible to make reactions hard to take place, or even very unlikely to happen, to actually happen. They are proteins that have normally an active binding site where molecules may connect to and preform the reaction. The necessary energy to make a reaction occur is less when aided by enzymes and that's what makes of them catalysts so that reactions may occur even when in lower temperatures.
The level of phospholipid organzation to arrange themselves into to parallel layers.
Possible contaminate will be Proteus or Salmonella. To differentiate the two genera urease test can be accomplished. However, urease test, Proteus will produce a positive test result.
This test can be done to determine the ability of an organism to split urea. The principle of urease test is that urea is the product of decarboxylation of amino acid. Splitting of urea via hydrolysis will produce ammnonia and CO2. The CO2 produce allows the formation of bubbles.
Crocodiles and alligators are both reptiles from the same order of animals, named Crocodylia. There are however a number of important differences which set these apex predators apart *Crocodiles have a longer, more V-shaped head then alligators.
*The fourth tooth of a crocodile sticks out when its mouth is closed.
*Crocodiles are better adapted to living in seawater.
*Crocodiles are more aggressive than alligators.
*Crocodiles tend to have a lighter appearance than alligators.
*Crocodiles in the wild are found all over the world while alligators are only found in the US and China.