<u>Answer</u>:
1. The purpose of the uninoculated control tubes used in the oxidation fermentation test is to serve as basis of the medium for the color comparison and that it is sterile.
2. It is necessary to use two controls in order to illustrate the no color change (green color) under both aerobic and anaerobic conditions.
3. The purpose of the experiment is to determine if the organisms utilize the carbohydrate and thus is fermentative. This will result in a color change from green to yellow.
Thus, the medium in one tube is sealed with a layer of paraffin to prevent diffusion of oxygen. This tube will show that the medium is unaffected by the lack of oxygen.
The second tube will allow the diffusion of oxygen. This tube will show that the medium does not change color naturally in the presence of oxygen. Thus, the color changes will be caused only by the fermentation process of the organisms.
Positive: You get to see different animals, see all kinds of habitats, learn new facts about all the animals and see them maybe in action!
Negative: They might be sleeping, In a cage or fence so they can't get out, restricted.
<span>The nurse should take the client to a private area preferably the client's room and help him get dressed. The client may be too erratic and confused to put the clothes on by himself or herself, so the nurse should help. The nurse does not need to be aggressive or mean because they do not want to risk agitating the client.</span>
They’re made up of histones
