Inherited traits are traits your born with, and acquired traits are traits are traits you get later in your life.
<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.
Answer:
The respiratory system is the network of organs and tissues that help you breathe. It includes; your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system.
Explanation:
A good example would be heating a tin can of water using a Bunsen burner. Initially the flame produces radiation which heats the tin can. The tin can then transfers heat to the water through conduction. The hot water then rises to the top, in the convection process. The atmosphere would be another example.
It can be observed that from the given choices, only two are from the group IA and the other two is from the group 7. Those belonging to group IA are the lithium (Li) and Potassium (K). The other two are from group 7. These are bromine (Br) and Iodine (I). Thus, the answer to the question are letters B and D.
